{"id":912,"date":"2025-01-19T03:20:11","date_gmt":"2025-01-19T03:20:11","guid":{"rendered":"https:\/\/itxperts.co.in\/blog\/?p=912"},"modified":"2025-08-02T09:05:33","modified_gmt":"2025-08-02T09:05:33","slug":"100-important-questions-and-answers-for-cbse-class-x-artificial-intelligence-ai-code-417-board-exam","status":"publish","type":"post","link":"https:\/\/itxperts.co.in\/blog\/100-important-questions-and-answers-for-cbse-class-x-artificial-intelligence-ai-code-417-board-exam\/","title":{"rendered":"100 Important Questions and Answers for CBSE Class X Artificial Intelligence (AI-417) Board Exam"},"content":{"rendered":"\n<p>Artificial Intelligence (AI) is a crucial subject for CBSE Class X students, focusing on real-world applications, ethics, and programming skills. To help you excel in your AI (417) board exams, here are <strong>100 chapter-wise important questions and answers<\/strong> organized in blog post format. These cover key topics from the curriculum, including theory, practical, and project-related queries.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 1: Introduction to Artificial Intelligence (AI)<\/strong><\/h3>\n\n\n\n<p><strong>1. What is Artificial Intelligence (AI)?<\/strong><br>AI refers to the simulation of human intelligence in machines that are programmed to think, learn, and solve problems like humans.<\/p>\n\n\n\n<p><strong>2. Name the three main domains of AI.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Data Science<\/li>\n\n\n\n<li>Computer Vision<\/li>\n\n\n\n<li>Natural Language Processing (NLP)<\/li>\n<\/ul>\n\n\n\n<p><strong>3. List some real-life applications of AI.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Virtual assistants like Siri and Alexa<\/li>\n\n\n\n<li>Self-driving cars<\/li>\n\n\n\n<li>Personalized recommendations on platforms like Netflix<\/li>\n<\/ul>\n\n\n\n<p><strong>4. What are AI ethics?<\/strong><br>AI ethics deal with the moral principles guiding the development and use of AI, such as fairness, transparency, and privacy.<\/p>\n\n\n\n<p><strong>5. How does AI help achieve Sustainable Development Goals (SDGs)?<\/strong><br>AI aids in addressing global challenges, such as improving healthcare, optimizing agriculture, and combating climate change.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 2: AI Project Cycle<\/strong><\/h3>\n\n\n\n<p><strong>6. What are the stages of the AI Project Cycle?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Problem Scoping<\/li>\n\n\n\n<li>Data Acquisition<\/li>\n\n\n\n<li>Data Exploration<\/li>\n\n\n\n<li>Modeling<\/li>\n\n\n\n<li>Evaluation<\/li>\n<\/ul>\n\n\n\n<p><strong>7. What is the importance of problem scoping in an AI project?<\/strong><br>Problem scoping defines the project goals, objectives, and constraints, ensuring a clear direction for the AI model.<\/p>\n\n\n\n<p><strong>8. Explain the term &#8220;Data Acquisition.&#8221;<\/strong><br>Data acquisition is the process of collecting relevant and reliable data for training and testing an AI model.<\/p>\n\n\n\n<p><strong>9. What is data visualization? Why is it important?<\/strong><br>Data visualization involves graphical representation of data. It helps in identifying patterns, trends, and insights for decision-making.<\/p>\n\n\n\n<p><strong>10. What does &#8220;Evaluation&#8221; mean in the AI Project Cycle?<\/strong><br>Evaluation assesses the performance of an AI model using metrics like accuracy, precision, recall, and F1 score.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 3: Advanced Python<\/strong><\/h3>\n\n\n\n<p><strong>11. Define a variable in Python.<\/strong><br>A variable is a container for storing data values in a program.<\/p>\n\n\n\n<p><strong>12. What is the difference between a list and a tuple in Python?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>List<\/strong>: Mutable (can be changed), e.g., <code>[1, 2, 3]<\/code><\/li>\n\n\n\n<li><strong>Tuple<\/strong>: Immutable (cannot be changed), e.g., <code>(1, 2, 3)<\/code><\/li>\n<\/ul>\n\n\n\n<p><strong>13. Write a Python program to calculate the sum of two numbers.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">a = 5\nb = 10\nprint(\"Sum:\", a + b)\n<\/code><\/pre>\n\n\n\n<p><strong>14. Name three Python libraries commonly used in AI.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NumPy<\/li>\n\n\n\n<li>Pandas<\/li>\n\n\n\n<li>Matplotlib<\/li>\n<\/ul>\n\n\n\n<p><strong>15. What is the purpose of Jupyter Notebook?<\/strong><br>Jupyter Notebook is an open-source tool for writing, testing, and sharing Python code in an interactive format.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 4: Data Science<\/strong><\/h3>\n\n\n\n<p><strong>16. Define data science.<\/strong><br>Data science is the study of data to extract meaningful insights using techniques like analysis, visualization, and modeling.<\/p>\n\n\n\n<p><strong>17. What is NumPy used for in Python?<\/strong><br>NumPy is used for numerical computations, such as array operations and mathematical functions.<\/p>\n\n\n\n<p><strong>18. Write a Python program to calculate the mean of a dataset.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">import numpy as np\ndata = [10, 20, 30, 40]\nmean = np.mean(data)\nprint(\"Mean:\", mean)\n<\/code><\/pre>\n\n\n\n<p><strong>19. Explain the term &#8220;data exploration.&#8221;<\/strong><br>Data exploration involves examining data sets to summarize their characteristics, often using statistical tools.<\/p>\n\n\n\n<p><strong>20. What are the common types of graphs used in data visualization?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Line chart<\/li>\n\n\n\n<li>Bar graph<\/li>\n\n\n\n<li>Scatter plot<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 5: Computer Vision<\/strong><\/h3>\n\n\n\n<p><strong>21. What is Computer Vision (CV)?<\/strong><br>CV is a field of AI that enables machines to interpret and analyze visual information from images or videos.<\/p>\n\n\n\n<p><strong>22. Explain the term &#8220;pixel.&#8221;<\/strong><br>A pixel is the smallest unit of a digital image, representing a single point of color.<\/p>\n\n\n\n<p><strong>23. What is the purpose of OpenCV in AI?<\/strong><br>OpenCV is an open-source library used for image processing and computer vision tasks.<\/p>\n\n\n\n<p><strong>24. Write a Python program to read and display an image using OpenCV.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">import cv2\nimage = cv2.imread('image.jpg')\ncv2.imshow('Image', image)\ncv2.waitKey(0)\ncv2.destroyAllWindows()\n<\/code><\/pre>\n\n\n\n<p><strong>25. What are RGB images?<\/strong><br>RGB images use three color channels\u2014Red, Green, and Blue\u2014to represent colors in a digital image.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 6: Natural Language Processing (NLP)<\/strong><\/h3>\n\n\n\n<p><strong>26. Define Natural Language Processing.<\/strong><br>NLP is a field of AI that enables machines to understand, interpret, and generate human language.<\/p>\n\n\n\n<p><strong>27. What is tokenization in NLP?<\/strong><br>Tokenization is the process of breaking a text into smaller units like words or sentences.<\/p>\n\n\n\n<p><strong>28. Write a Python program to tokenize a sentence using NLTK.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">from nltk.tokenize import word_tokenize\nsentence = \"AI is transforming the world.\"\ntokens = word_tokenize(sentence)\nprint(tokens)\n<\/code><\/pre>\n\n\n\n<p><strong>29. Explain the Bag-of-Words model in NLP.<\/strong><br>The Bag-of-Words model represents text data as a collection of words and their frequency, ignoring grammar and word order.<\/p>\n\n\n\n<p><strong>30. List some applications of NLP in daily life.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chatbots<\/li>\n\n\n\n<li>Sentiment analysis<\/li>\n\n\n\n<li>Translation tools<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 7: Evaluation<\/strong><\/h3>\n\n\n\n<p><strong>31. What is model evaluation?<\/strong><br>Model evaluation measures the performance of an AI model using specific metrics.<\/p>\n\n\n\n<p><strong>32. Define accuracy, precision, recall, and F1 score.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Accuracy:<\/strong> Percentage of correct predictions.<\/li>\n\n\n\n<li><strong>Precision:<\/strong> Ratio of true positives to all predicted positives.<\/li>\n\n\n\n<li><strong>Recall:<\/strong> Ratio of true positives to all actual positives.<\/li>\n\n\n\n<li><strong>F1 Score:<\/strong> Harmonic mean of precision and recall.<\/li>\n<\/ul>\n\n\n\n<p><strong>33. Write an example of a confusion matrix.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Predicted<\/strong><\/th><th><strong>Positive<\/strong><\/th><th><strong>Negative<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Positive<\/td><td>True Positive<\/td><td>False Negative<\/td><\/tr><tr><td>Negative<\/td><td>False Positive<\/td><td>True Negative<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>34. Why is a confusion matrix important?<\/strong><br>It provides a detailed breakdown of model predictions, helping to identify errors and areas for improvement.<\/p>\n\n\n\n<p><strong>35. What is underfitting and overfitting?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Underfitting:<\/strong> Model is too simple and performs poorly.<\/li>\n\n\n\n<li><strong>Overfitting:<\/strong> Model is too complex and performs well on training data but poorly on new data.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>More Practice Questions by Topic<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Problem-Solving in AI<\/strong><\/h4>\n\n\n\n<ol start=\"36\" class=\"wp-block-list\">\n<li>What is supervised learning?<\/li>\n\n\n\n<li>Explain reinforcement learning with an example.<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Programming with Python<\/strong><\/h4>\n\n\n\n<ol start=\"38\" class=\"wp-block-list\">\n<li>Write a program to calculate the median using NumPy.<\/li>\n\n\n\n<li>How do you create a scatter plot in Matplotlib?<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Real-Life Applications<\/strong><\/h4>\n\n\n\n<ol start=\"40\" class=\"wp-block-list\">\n<li>How does AI contribute to healthcare?<\/li>\n\n\n\n<li>What role does AI play in climate change solutions?<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 7: Evaluation (Continued)<\/strong><\/h3>\n\n\n\n<p><strong>36. Why is the F1 score important in evaluating AI models?<\/strong><br>The F1 score balances precision and recall, making it useful when dealing with imbalanced datasets.<\/p>\n\n\n\n<p><strong>37. What is the difference between validation and testing in model evaluation?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Validation:<\/strong> Used during model training to tune parameters.<\/li>\n\n\n\n<li><strong>Testing:<\/strong> Used after training to measure the model\u2019s final performance.<\/li>\n<\/ul>\n\n\n\n<p><strong>38. Write a formula to calculate precision.<\/strong><br>Precision=True&nbsp;PositivesTrue&nbsp;Positives&nbsp;+&nbsp;False&nbsp;Positives\\text{Precision} = \\frac{\\text{True Positives}}{\\text{True Positives + False Positives}}<\/p>\n\n\n\n<p><strong>39. What is the role of a confusion matrix?<\/strong><br>A confusion matrix evaluates a model by showing the number of true\/false positives and true\/false negatives.<\/p>\n\n\n\n<p><strong>40. How do you determine if a model is overfitting?<\/strong><br>If a model performs well on training data but poorly on validation or test data, it is overfitting.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Advanced Python Programming (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>41. How do you create a virtual environment in Python?<\/strong><br>Run the following command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">python -m venv env_name\n<\/code><\/pre>\n\n\n\n<p><strong>42. What is the purpose of the <code>matplotlib<\/code> library?<\/strong><br>Matplotlib is used for creating static, interactive, and animated visualizations in Python.<\/p>\n\n\n\n<p><strong>43. Write a Python program to create a line graph using Matplotlib.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">import matplotlib.pyplot as plt\nx = [1, 2, 3, 4]\ny = [10, 20, 25, 30]\nplt.plot(x, y)\nplt.title(\"Line Graph Example\")\nplt.show()\n<\/code><\/pre>\n\n\n\n<p><strong>44. How do you import the Pandas library in Python?<\/strong><br>Use the command:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">import pandas as pd\n<\/code><\/pre>\n\n\n\n<p><strong>45. What is the difference between <code>df.head()<\/code> and <code>df.tail()<\/code> in Pandas?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>df.head()<\/code><\/strong>: Displays the first 5 rows of a DataFrame.<\/li>\n\n\n\n<li><strong><code>df.tail()<\/code><\/strong>: Displays the last 5 rows of a DataFrame.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Data Science (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>46. What is the difference between structured and unstructured data?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structured Data:<\/strong> Organized in a fixed format, like rows and columns (e.g., databases).<\/li>\n\n\n\n<li><strong>Unstructured Data:<\/strong> Does not follow a specific format (e.g., images, videos).<\/li>\n<\/ul>\n\n\n\n<p><strong>47. Write a Python program to calculate the standard deviation of a dataset.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">import numpy as np\ndata = [10, 20, 30, 40]\nstd_dev = np.std(data)\nprint(\"Standard Deviation:\", std_dev)\n<\/code><\/pre>\n\n\n\n<p><strong>48. What is a CSV file, and why is it important in data science?<\/strong><br>A CSV (Comma-Separated Values) file is a simple file format used to store tabular data, making it easy to import and manipulate in Python.<\/p>\n\n\n\n<p><strong>49. What are the key steps in data preprocessing?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cleaning<\/li>\n\n\n\n<li>Normalization<\/li>\n\n\n\n<li>Transformation<\/li>\n\n\n\n<li>Feature selection<\/li>\n<\/ul>\n\n\n\n<p><strong>50. Define outlier detection in data analysis.<\/strong><br>Outlier detection involves identifying data points that differ significantly from the majority of the dataset.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Computer Vision (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>51. What are the basic tasks in computer vision?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Image classification<\/li>\n\n\n\n<li>Object detection<\/li>\n\n\n\n<li>Image segmentation<\/li>\n<\/ul>\n\n\n\n<p><strong>52. Write a Python program to convert a color image to grayscale using OpenCV.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">import cv2\nimage = cv2.imread('image.jpg')\ngray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)\ncv2.imshow('Grayscale Image', gray_image)\ncv2.waitKey(0)\ncv2.destroyAllWindows()\n<\/code><\/pre>\n\n\n\n<p><strong>53. What is the difference between grayscale and RGB images?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Grayscale:<\/strong> Contains shades of gray, using one channel.<\/li>\n\n\n\n<li><strong>RGB:<\/strong> Contains colors represented by three channels (Red, Green, Blue).<\/li>\n<\/ul>\n\n\n\n<p><strong>54. Define feature extraction in computer vision.<\/strong><br>Feature extraction identifies important parts of an image (e.g., edges, corners) for analysis.<\/p>\n\n\n\n<p><strong>55. Explain the role of convolutional neural networks (CNNs) in computer vision.<\/strong><br>CNNs are deep learning models that process visual data, excelling in tasks like image recognition and object detection.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Natural Language Processing (NLP) (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>56. What is sentiment analysis in NLP?<\/strong><br>Sentiment analysis determines the sentiment (positive, negative, or neutral) expressed in a text.<\/p>\n\n\n\n<p><strong>57. Write a Python program to remove stopwords using NLTK.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">from nltk.corpus import stopwords\nfrom nltk.tokenize import word_tokenize\ntext = \"AI is changing the world rapidly.\"\nstop_words = set(stopwords.words('english'))\nwords = word_tokenize(text)\nfiltered_words = [w for w in words if w.lower() not in stop_words]\nprint(filtered_words)\n<\/code><\/pre>\n\n\n\n<p><strong>58. What are stopwords?<\/strong><br>Stopwords are common words (e.g., &#8220;and,&#8221; &#8220;the&#8221;) that are often removed from text data as they add little meaning.<\/p>\n\n\n\n<p><strong>59. What is text normalization?<\/strong><br>Text normalization converts text to a standard form, involving steps like lowercasing, removing punctuation, and stemming.<\/p>\n\n\n\n<p><strong>60. Explain the term &#8220;TF-IDF.&#8221;<\/strong><br>TF-IDF (Term Frequency-Inverse Document Frequency) measures the importance of a term in a document relative to a collection of documents.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Real-Life Applications of AI<\/strong><\/h3>\n\n\n\n<p><strong>61. How does AI help in healthcare?<\/strong><br>AI enables early diagnosis, personalized treatment, and predictive analytics in healthcare.<\/p>\n\n\n\n<p><strong>62. What is the role of AI in agriculture?<\/strong><br>AI helps optimize crop yields, detect diseases, and automate farming tasks using drones and sensors.<\/p>\n\n\n\n<p><strong>63. Name three AI-powered virtual assistants.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Siri<\/li>\n\n\n\n<li>Alexa<\/li>\n\n\n\n<li>Google Assistant<\/li>\n<\/ul>\n\n\n\n<p><strong>64. How does AI improve customer service?<\/strong><br>AI chatbots and sentiment analysis help provide faster, more personalized customer support.<\/p>\n\n\n\n<p><strong>65. Explain the role of AI in e-commerce.<\/strong><br>AI powers personalized product recommendations, inventory management, and fraud detection.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Model Evaluation (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>66. What is a True Positive (TP)?<\/strong><br>A TP occurs when the model correctly predicts a positive outcome.<\/p>\n\n\n\n<p><strong>67. What is a False Negative (FN)?<\/strong><br>An FN occurs when the model incorrectly predicts a negative outcome for a positive case.<\/p>\n\n\n\n<p><strong>68. Write a Python function to calculate accuracy from a confusion matrix.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">def calculate_accuracy(tp, tn, fp, fn):\n    total = tp + tn + fp + fn\n    return (tp + tn) \/ total\n<\/code><\/pre>\n\n\n\n<p><strong>69. Why is precision important in fraud detection?<\/strong><br>Precision ensures that flagged cases are truly fraudulent, minimizing false alarms.<\/p>\n\n\n\n<p><strong>70. What is the difference between Recall and Sensitivity?<\/strong><br>Recall and sensitivity both measure the ability to identify actual positives, but sensitivity is commonly used in medical diagnostics.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chapter 7: Evaluation (Continued)<\/strong><\/h3>\n\n\n\n<p><strong>71. What is recall, and why is it important?<\/strong><br>Recall measures how well a model identifies all relevant instances. It is critical in cases like medical diagnosis, where missing a positive case can have severe consequences.<\/p>\n\n\n\n<p><strong>72. Write the formula to calculate recall.<\/strong><br>Recall=True&nbsp;PositivesTrue&nbsp;Positives+False&nbsp;Negatives\\text{Recall} = \\frac{\\text{True Positives}}{\\text{True Positives} + \\text{False Negatives}}<\/p>\n\n\n\n<p><strong>73. What is the F1 score, and when should it be used?<\/strong><br>The F1 score is the harmonic mean of precision and recall. It is used when there is an imbalance between false positives and false negatives.<\/p>\n\n\n\n<p><strong>74. What is a confusion matrix, and how is it constructed?<\/strong><br>A confusion matrix is a table that summarizes the performance of a classification model by showing true positives, true negatives, false positives, and false negatives.<\/p>\n\n\n\n<p><strong>75. How is overfitting prevented in AI models?<\/strong><br>Overfitting can be prevented by:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Using simpler models.<\/li>\n\n\n\n<li>Employing techniques like regularization.<\/li>\n\n\n\n<li>Using cross-validation during model training.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Advanced Python Programming (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>76. Write a Python program to find the largest number in a list.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"python\" class=\"language-python\">numbers = [10, 20, 30, 40, 50]\nlargest = max(numbers)\nprint(\"Largest number:\", largest)\n<\/code><\/pre>\n\n\n\n<p><strong>77. How do you install a Python library?<\/strong><br>Run the following command in your terminal:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"python\" class=\"language-python\">pip install library_name\n<\/code><\/pre>\n\n\n\n<p><strong>78. What is the difference between a <code>for<\/code> loop and a <code>while<\/code> loop in Python?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>For loop:<\/strong> Iterates over a sequence (e.g., list or range).<\/li>\n\n\n\n<li><strong>While loop:<\/strong> Repeats as long as a condition is true.<\/li>\n<\/ul>\n\n\n\n<p><strong>79. Write a Python program to generate a bar chart using Matplotlib.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"python\" class=\"language-python\">import matplotlib.pyplot as plt\ncategories = ['A', 'B', 'C']\nvalues = [30, 40, 50]\nplt.bar(categories, values)\nplt.title(\"Bar Chart Example\")\nplt.show()\n<\/code><\/pre>\n\n\n\n<p><strong>80. What is the purpose of the <code>pandas<\/code> library?<\/strong><br>Pandas is used for data manipulation and analysis, providing tools to work with structured data like DataFrames.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Data Science (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>81. What are the common types of data in AI?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Structured Data:<\/strong> Tabular format.<\/li>\n\n\n\n<li><strong>Unstructured Data:<\/strong> Images, videos, text.<\/li>\n\n\n\n<li><strong>Semi-Structured Data:<\/strong> JSON, XML files.<\/li>\n<\/ul>\n\n\n\n<p><strong>82. What is the importance of cleaning data in data science?<\/strong><br>Data cleaning ensures the dataset is free of errors, missing values, and inconsistencies, improving model accuracy.<\/p>\n\n\n\n<p><strong>83. Write a Python program to read a CSV file using Pandas.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"python\" class=\"language-python\">import pandas as pd\ndata = pd.read_csv('data.csv')\nprint(data.head())\n<\/code><\/pre>\n\n\n\n<p><strong>84. Define feature engineering.<\/strong><br>Feature engineering involves creating new features or modifying existing ones to improve a model&#8217;s performance.<\/p>\n\n\n\n<p><strong>85. What are the common statistical measures used in data science?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mean<\/li>\n\n\n\n<li>Median<\/li>\n\n\n\n<li>Mode<\/li>\n\n\n\n<li>Standard Deviation<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Computer Vision (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>86. What is the role of kernels in image processing?<\/strong><br>Kernels are small matrices used to apply transformations like edge detection or blurring in images.<\/p>\n\n\n\n<p><strong>87. Write a Python program to apply Gaussian blur to an image using OpenCV.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"python\" class=\"language-python\">import cv2\nimage = cv2.imread('image.jpg')\nblurred_image = cv2.GaussianBlur(image, (5, 5), 0)\ncv2.imshow('Blurred Image', blurred_image)\ncv2.waitKey(0)\ncv2.destroyAllWindows()\n<\/code><\/pre>\n\n\n\n<p><strong>88. What is the difference between edge detection and segmentation in CV?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Edge Detection:<\/strong> Identifies boundaries in an image.<\/li>\n\n\n\n<li><strong>Segmentation:<\/strong> Divides an image into meaningful regions.<\/li>\n<\/ul>\n\n\n\n<p><strong>89. Explain the term &#8220;object detection.&#8221;<\/strong><br>Object detection involves identifying and locating objects within an image or video.<\/p>\n\n\n\n<p><strong>90. What is the significance of OpenCV in AI?<\/strong><br>OpenCV is a widely used library for image processing and computer vision, enabling tasks like object detection, face recognition, and image manipulation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Natural Language Processing (NLP) (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>91. What are the major challenges in NLP?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ambiguity in language.<\/li>\n\n\n\n<li>Understanding context.<\/li>\n\n\n\n<li>Handling unstructured data.<\/li>\n<\/ul>\n\n\n\n<p><strong>92. Write a Python program to count the frequency of words in a text.<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"sql\" class=\"language-sql\">from collections import Counter\ntext = \"AI is transforming the world. AI is everywhere.\"\nword_count = Counter(text.split())\nprint(word_count)\n<\/code><\/pre>\n\n\n\n<p><strong>93. What is lemmatization in NLP?<\/strong><br>Lemmatization reduces words to their root forms, considering the context (e.g., &#8220;running&#8221; \u2192 &#8220;run&#8221;).<\/p>\n\n\n\n<p><strong>94. Explain the term &#8220;language model.&#8221;<\/strong><br>A language model predicts the likelihood of a sequence of words, helping in tasks like text generation and translation.<\/p>\n\n\n\n<p><strong>95. What is the purpose of text vectorization in NLP?<\/strong><br>Text vectorization converts text into numerical data for machine learning algorithms to process.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Real-Life Applications of AI (Additional Questions)<\/strong><\/h3>\n\n\n\n<p><strong>96. How does AI contribute to education?<\/strong><br>AI personalizes learning, automates administrative tasks, and enables intelligent tutoring systems.<\/p>\n\n\n\n<p><strong>97. What is the role of AI in transportation?<\/strong><br>AI powers self-driving cars, optimizes traffic management, and improves logistics.<\/p>\n\n\n\n<p><strong>98. How is AI used in financial services?<\/strong><br>AI detects fraud, predicts stock trends, and provides personalized financial advice.<\/p>\n\n\n\n<p><strong>99. What are AI&#8217;s contributions to environmental conservation?<\/strong><br>AI monitors wildlife, predicts natural disasters, and optimizes energy usage.<\/p>\n\n\n\n<p><strong>100. Explain how AI is transforming the entertainment industry.<\/strong><br>AI powers content recommendations (e.g., Netflix), enhances visual effects, and creates virtual actors.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h3>\n\n\n\n<p>These 100 questions and answers provide comprehensive preparation for your CBSE Class X Artificial Intelligence (AI) (417) board exams. Focus on understanding the concepts, practicing Python coding, and exploring real-life AI applications.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Artificial Intelligence (AI) is a crucial subject for CBSE Class X students, focusing on real-world applications, ethics, and programming skills. To help you excel in your AI (417) board exams, here are 100 chapter-wise important questions and answers organized in blog post format. These cover key topics from the curriculum, including theory, practical, and project-related [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":913,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"googlesitekit_rrm_CAow44u0DA:productID":"","footnotes":""},"categories":[169],"tags":[],"class_list":["post-912","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-viva"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>100 Important Questions and Answers for CBSE Class X Artificial Intelligence (AI-417) Board Exam - Itxperts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itxperts.co.in\/blog\/100-important-questions-and-answers-for-cbse-class-x-artificial-intelligence-ai-code-417-board-exam\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"100 Important Questions and Answers for CBSE Class X Artificial Intelligence (AI-417) Board Exam - Itxperts\" \/>\n<meta property=\"og:description\" content=\"Artificial Intelligence (AI) is a crucial subject for CBSE Class X students, focusing on real-world applications, ethics, and programming skills. 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