Students can access the CBSE Sample Papers for Class 10 AI with Solutions and marking scheme Set 8 will help students in understanding the difficulty level of the exam.
CBSE Sample Papers for Class 10 AI Set 8 with Solutions
General Instructions
- Please read the instructions carefully.
- This Question Paper consists of 21 questions in two sections: Section A & Section B.
- Section A has Objective type questions whereas Section B contains Subjective type questions.
- Out of the given (5+16)=21 questions, a candidate has to answer (5+10)=15 questions in the allotted (maximum) time of 2 hours.
- All questions of a particular section must be attempted in the correct order.
- Section A: Objective Type Questions (24 Marks)
- This section has 5 questions.
- There is no negative marking.
- Do as per the instructions given.
- Marks allotted are mentioned against each question/part.
- Section B: Subjective Type Questions (26 Marks)
- This section has 16 questions.
- A candidate has to do 10 questions.
- Do as per the instructions given.
- Marks allotted are mentioned against each question/part.
Section A
Objective Type Questions
Question 1.
Answer any 4 out of the given 6 questions on Employability Skills. (4×1=4)
(i) Which of the following is not an element of communication within the communication process cycle?
(a) Channel
(b) Receiver
(c) Sender
(d) Time
Answer:
(d) Time
(ii) What makes you complete work or studies without others cheering you?
(a) Self-confidence
(b) Communication
(c) Self-motivation
(d) Self-esteem
Answer:
(c) Self-motivation
(iii) Assertion (A) Entrepreneurship is essential for economic development.
Reason (R) Entrepreneurs create jobs, foster innovation, and stimulate economic growth.
(a) Both A and R are correct, and R is the correct explanation of A
(b) Both A and R are correct, but R is not the correct explanation of A
(c) A is correct, but R is not correct.
(d) A is not correct, but R is correct.
(iv) Anu is a student learning about the concept of “Development” in her social studies class. Her teacher explains that “Development is not just about achieving political goals but also involves various other aspects”. The term “Development” encompasses political goals but also ………….progress.
(a) Economic
(b) Environmental
(c) Social
(d) Individual
Answer:
(a) Economic
(v) What type of motivation is seen when a person works only for money or responsibilities, without any personal satisfaction?
(a) Internal motivation
(b) External motivation
(c) Spiritual motivation
(d) Realistic motivation
Answer:
(b) External motivation
(vi) Which of the following is true regarding real-time operating systems?
(a) They are designed to respond to events within a specific, predetermined time frame.
(b) Examples of real-time operating systems include Windows CE and QNX.
(c) Both (a) and (b) are correct.
(d) Neither (a) nor (b) is correct.
Answer:
(c) Both (a) and (b) are correct.
Question 2.
Answer any 5 out of the given 6 questions. (5×1=5)
(i) Platforms like Netflix, Amazon, and YouTube suggest movies, products, or videos based on your previous activity. Which technology is responsible for this behavior?
(a) Human Intelligence
(b) Platform Intelligence
(c) Artificial Intelligence
(d) Application Intelligence
Answer:
(c) Artificial Intelligence
(ii) Assertion (A) Value-based frameworks in ethics provide guidance by focusing on fundamental ethical principles and values.
Reason (R) These frameworks effect different moral philosophies guiding ethical reasoning and are concerned with assessing the moral worth of actions.
(a) Both A and R are correct, and R is the correct explanation of A
(b) Both A and R are correct, but R is not the correct explanation of A
(c) A is correct, but R is not correct.
(d) A is not correct, but R is correct.
Answer:
(a) Both A and R are correct, and R is the correct explanation of A
(iii) Training a neural network often requires:
(a) A small set of labeled data samples
(b) A significant amount of data and computational resources
(c) A specific set of programming instructions
(d) A human expert to guide the learning process
Answer:
(b) A significant amount of data and computational resources
(iv) Statement 1 In the “Why” block of the 4Ws canvas, we define the purpose behind solving the problem.
Statement 2 The “Why” block helps in identifying the ethical concerns related to the AI project.
(a) Both Statement 1 and Statement 2 are correct.
(b) Both Statement 1 and Statement 2 are incorrect.
(c) Statement 1 is correct but Statement 2 is incorrect.
(d) Statement 2 is correct but Statement 1 is incorrect.
Answer:
(c) Statement 1 is correct but Statement 2 is incorrect.
(v) Object detection and handwriting recognition are examples of tasks commonly associated with:
(a) Computer vision
(b) Image processing
(c) Both computer vision and image processing
(d) Neither computer vision nor image processing
Answer:
(a) Computer vision
(vi) Words that we want to filter out before doing any analysis of the text are called ………………
(a) Rare words
(b) Stop words
(c) Frequent words
(d) Filter words
Answer:
(b) Stop words
Question 3.
Answer any 5 out of the given 6 questions. (5×1=5)
(i) Which algorithms result in two things, a vocabulary of words and frequency of the words in the corpus?
(a) Sentence segmentation
(b) Tokenisation
(c) Bag of words
(d) Text normalisation
Answer:
(c) Bag of words
(ii) An employee is checking his emails. His computer automatically places promotional scams in the spam folder based on past examples. This process best demonstrates:
(a) Supervised Learning
(b) Unsupervised Learning
(c) Reinforcement Learning
(d) Transfer Learning
Answer:
(a) Supervised Learning
(iii) What is the core task of image classification?
(a) Identifying objects and their locations in images
(b) Segmenting objects into individual pixels
(c) Assigning an input image one label from a fixed set of categories
(d) Detecting instances of real-world objects in images
Answer:
(c) Assigning an input image one label from a fixed set of categories
(iv) Which of the following statements is NOT true about supervised learning?
(a) Requires labeled data for training.
(b) Used for classification and regression tasks.
(c) Can be less efficient for large datasets.
(d) Often used in image recognition applications.
Answer:
(c) Can be less efficient for large datasets.
(v) Identify the logo of an application of AI given below. It helps us to entertainment.
Answer:
Spotify
(vi) ………. is defined as the percentage of correct predictions out of all the observations.
(a) Predictions
(b) Accuracy
(c) Reality
(d) F1 Score
Answer:
(b) Accuracy
Question 4.
Answer any 5 out of the given 6 questions. (5×1=5)
(i) In which type of machine learning is the data labeled with the desired output?
(a) Supervised Learning
(b) Unsupervised Learning
(c) Reinforcement Learning
(d) Deep Learning
Answer:
(a) Supervised Learning
(ii) A student solved 90 out of 100 questions correctly in a multiple-choice exam. What is the error rate of the student’s answers?
(a) 10%
(b) 9 %
(c) 8 %
(d) 11%
Answer:
(a) 10%
(iii) Which two evaluation methods are used to calculate the F1 score?
(a) Precision & Accuracy
(b) Precision & Recall
(c) Accuracy & Recall
(d) Precision & F1 score
Answer:
(b) Precision & Recall
(iv) Statement 1 In AI modeling, Machine Learning refers to a system where the machine learns by itself without explicit programming.
Statement 2 Rule-based systems also learn from patterns and improve over time on their own.
(a) Both Statement 1 and Statement 2 are correct.
(b) Both Statement 1 and Statement 2 are incorrect.
(c) Statement 1 is correct but Statement 2 is incorrect.
(d) Statement 2 is correct but Statement 1 is incorrect.
Answer:
(c) Statement 1 is correct but Statement 2 is incorrect.
(v) A machine learning algorithm that groups similar customer purchases into clusters for recommendation systems uses which learning?
Answer:
Unsupervised Learning
(vi) What is the purpose of defining the problem statement during the Problem Scoping stage in an AI project cycle?
(a) To collect data
(b) To understand the aim and objective of the project
(c) To train the model
(d) To process data
Answer:
(b) To understand the aim and objective of the project
Question 5.
Answer any 5 out of the given 6 questions. (5×1=5)
(i) A high F1 score generally suggests:
(a) A significant imbalance between precision and recall
(b) A good balance between precision and recall
(c) A model that only performs well on specific data points
(d) The need for more training data
Answer:
(b) A good balance between precision and recall
Mistake Alert
Students often misunderstand a high F1 score as a result of large data volume or model overtraining. In reality, F1 score reflects the balance between precision and recall, not data size or training depth.
(ii) What is the primary domain of application for Bioethics?
(a) Agriculture
(b) Healthcare and life sciences
(c) Information technology
(d) Environmental conservation
Answer:
(b) Healthcare and life sciences
(iii) Statement 1 Computer vision is one of the most important fields of artificial intelligence (AI)
Statement 2 It is capable of extracting meaningful information from visual data like videos and images.
(a) Both Statement 1 and Statement 2 are correct
(b) Both Statement 1 and Statement 2 are incorrect
(c) Statement 1 is correct but Statement 2 is incorrect
(d) Statement 2 is correct but Statement 1 is incorrect
Answer:
(a) Both Statement 1 and Statement 2 are correct
(iv) Google Translate is Google’s free service that instantly translates words, phrases, and web pages between English and over 100 other languages. Google translate uses
(a) 4 W problem canvas
(b) Neural Networks
(c) KWLH chart
(d) System maps
Answer:
(b) Neural Networks
(v) Natural Language Processing majorly deals with ……….. processing.
(a) Numeric data
(b) Textual data
(c) Image data
(d) Visual data
Answer:
(b) Textual data
(vi) In a medical test for a rare disease, out of 1000 people tested, 50 actually have the disease while 950 do not. The test correctly identifies 40 out of the 50 people with the disease as positive, but it also wrongly identifies 30 of the healthy individuals as positive. What is the accuracy of the test?
(a) 97 %
(b) 90 %
(c) 85 %
(d) 70%
Answer:
(a) 97%
Section B
Subjective Type Questions
Answer any 3 out of the given 5 questions on Employability skills. Answer each question in 20-30 words. (3×2=6)
Question 6.
Explain the role of anti-virus.
Answer:
- Anti-virus software plays a crucial role in protecting computers and networks from malicious attacks, such as viruses, malware, and spyware.
- It scans and monitors system files and incoming data for threats, quarantines or removes detected malicious code, and provides real-time protection by blocking suspicious activities.
- By maintaining the integrity and security of digital systems, anti-virus software helps prevent data breaches, financial loss, and system downtime.
Question 7.
A farming cooperative aims to transition to sustainable agricultural practices to address environmental concerns and meet consumer demand for eco-friendly products. What problems might they encounter, and how can they address these issues?
Answer:
The cooperative may face challenges like higher initial costs, resistance to change from traditional farmers, and potential yield reductions during the transition period. To address these issues, they can seek government grants or subsidies, provide training and support to farmers, and gradually implement sustainable practices to balance production and profitability. Building a strong market presence for their eco-friendly products can also ensure long-term sustainability and consumer trust.
Question 8.
An entrepreneur decides to invest in a new start-up focused on developing plant-based meat alternatives. Despite market uncertainty and potential financial losses, the entrepreneur believes in the long-term benefits of sustainable food options. What risks does the entrepreneur face, and how do they navigate these challenges?
Answer:
The entrepreneur faces financial risks, market acceptance risks, and supply chain uncertainties. They navigate these challenges by conducting through market research, securing diverse funding sources, and building partnerships with reliable suppliers.
By focusing on product quality and aligning with growing consumer demand ‘for sustainable food options, the entrepreneur mitigates risks and positions the start-up for potential success.
Question 9.
Parts of speech plays an important role in communication in English language. Justify.
Answer:
Parts of speech are fundamental to the structure and clarity of communication in the English language. They help in organizing words into sentences that convey precise meanings. Nouns identify subjects and objects, verbs indicate actions or states, adjectives describe qualities, and adverbs modify verbs, adjectives, or other adverbs. Proper use of parts of speech ensures that sentences are grammatically correct and easily understood.
Question 10.
Outline any two advantages of working independently.
Answer:
Two advantages of working independently are:
(a) Autonomy and Flexibility Working independently allows individuals to set their schedules, prioritize tasks according to personal preferences, and make decisions without needing approval from others. This autonomy can lead to increased job satisfaction and motivation.
(b) Skill Development Independent work fosters self-reliance and enhances problem-solving skills. Individuals often take on a wider range of tasks, leading to the development of diverse skills and a deeper understanding of their work, which can be beneficial for career growth and personal development.
Answer any 4 out of the given 6 questions in 20-30 words each. (4×2=8)
Question 11.
Differentiate between Classification and Regression.
Answer:
| Classification | Regression |
| This model works on a discrete dataset which means the data need not be continuous. | This model works on continuous data. |
| For example, in the grading system, students are classified on the basis of the grades they obtain with respect to their marks in the examination. | For example, if you wish to predict your next salary, then you would put in the data of your previous salary, any increments, etc and would train the model. |
Question 12.
What do you mean by Evaluation of an AI model ? Also explain the concept of overfitting with respect to AI model Evaluation.
Answer:
Evaluation of an AI model refers to the process of assessing its performance and effectiveness in solving a particular task or problem. One critical concept in the evaluation of AI models is overfitting. Overfitting occurs when a model learns the training data too well, capturing noise or random fluctuations in the data rather than the underlying patterns.
Question 13.
Carefully study the given diagram. It illustrates a system where organized machine learning algorithms perform certain tasks.
Identify the concept of Artificial Intelligence depicted in the diagram and briefly explain how this system (with Data, Machine Learning Algorithms + Hidden Rules, and Answer) functions and why it is useful for solving complex problems.
Answer:
The concept of Artificial Intelligence depicted in the diagram is a Neural Network.
How this system functions and why it is useful-
1. Functioning
- It takes ‘Data’ as ‘Inputs’.
- The data passes through multiple ‘Hidden Layers’, where complex computations occur via machine learning algorithms.
- These layers automatically learn ‘Hidden Rules’ or patterns from the data.
- Finally, it provides the processed information as an ‘Answer’ (Final processed information).
2. Usefulness (for complex problems)
- It is highly effective at recognizing hidden patterns in large and complex datasets.
- It has the ability to understand and model non-linear relationships within data.
- Its learning capability makes it very effective in solving complex real-world problems (like image recognition, language processing).
Question 14.
Name the real-life applications of computer vision.
Answer:
The real-life applications of computer vision are:
- Facial recognition in smartphones
- Face filters
- Google translate app
Question 15.
What is Tokenisation? Count how many tokens are present in the following statement:
I find that the harder I work, the more luck I seem to have.
Answer:
Tokenisation is the process of breaking down text into individual words or tokens. In the given statement, there are 14 tokens: “I”, “find”, “that”, “the”, “harder”, “I”, “work”, “the”, “more”, “luck”, “I”, “seem”, “to” have”.
Question 16.
With reference to evaluation stage of AI project cycle, explain the term Accuracy. Also give the formula to calculate it.
Answer:
In the evaluation stage of an AI project cycle, accuracy is a key metric used to assess the performance of a machine learning model. It measures the proportion of correctly classified instances out of all instances examined. In other words, accuracy indicates how often the model is correct in its predictions.
Accuracy \(=\frac{(\mathrm{TP}+\mathrm{TN})}{(\mathrm{TP}+\mathrm{TN}+\mathrm{FP}+\mathrm{FN})}\) x100
Answer any 3 out of the given 5 questions in 50-80 words. (3×4=12)
Question 17.
What do you understand by AI Privacy and AI Transparency? Give one example of each to support your answer.
Answer:
AI Privacy AI Privacy refers to protecting personal or sensitive data used by AI systems. It ensures that user information is not misused or shared without consent.
Example A fitness app using AI should not share your health data with third-party advertisers without your permission.
AI Transparency AI Transparency means making AI decisions understandable and clear to users. People should know how and why an AI system made a particular decision.
Example If a loan application is rejected by an AI system, it should explain the reason-such as low credit score or missing documents.
Question 18.
Akhil wants to learn how to scope the problem for an AI Project. Explain him the following:
(a) 4 Ws Problem Canvas
(b) Problem Statement Template
Answer:
(a) The 4Ws Problem canvas helps in identifying the key elements related to the problem. The 4Ws are
- The “Who” block helps in analysing the people getting affected directly gr indirectly due to the problem.
- The “What” block helps us to determine the nature of the problem.
- The “Where” block helps us to look into the situation in which the problem arises, the context of it, and the locations where it is prominent.
- The “Why” block suggests to us the benefits which the stakeholders would get from the solution and how it will benefit them as well as to the society.
(b) Problem Statement Template
| Our | Stakeholders | Who? |
| Have a problem that | Issues, problem, need | What? |
| When/ while | Context, situation | Where? |
| An ideal solution would be | Solution | Why? |
Question 19
What is a neural network, and how does it work?
Answer:
A neural network is a computer system modeled after the human brain. It consists of layers of artificial neurons that process data and recognize patterns. A neural network has three main layers: the input layer, which receives data; the hidden layers, which process information using mathematical operations; and the output layer, which produces the final result.
Each neuron in these layers is connected and assigned a weight, which determines its importance. When data passes through the network, these weights are adjusted to improve accuracy through a process called training. Neural networks learn from large datasets and improve their performance over time. They are widely used in applications like image recognition, language translation, and medical diagnosis. Due to their ability to analyze complex data efficiently, neural networks are considered a key technology in artificial intelligence (AI).
Question 20.
Automated trade industry has developed an AI model which predicts the selling and purchasing of automobiles during testing the AI model game with the following predictions.
| To Confusion Matrix | Reality | ||
| Yes | No | ||
| Predicated | Yes | 60 | 25 |
| No | 05 | 10 | |
(a) How many total tests have been performed in the above scenario?
(b) Calculate precision, recall and Fi score.
Answer:
From the confusion matrix:
TP=60
FP=25
TN = 10
FN=5
(a) Total tests performed: The total number of tests is the sum of all entries in the confusion matrix:
Total tests = TP + FP + TN + FN
=60+25+10+5=100
(b) Now, let’s calculate precision, recall and FI score:
1. Precision (P) = TP/(TP + FP)
= 60/(60 + 25) = 60/85 = 0.706
2. Recall (R)= TP/(TP +FN) =601(60+5)
= 60/65 = 0.923
3. FI Score=2x(PxR)/(P+R)
= 2 x (0.706 x 0.923)1(0.706 + 0.923)
= 2 x (0.651/1.629)
=2 x 0. 399 = 0.799
Question 21.
Consider the text of the following documents:
Document I Sahil likes to play cricket
Document 2 Sajal likes cricket too
Document 3 Sajal also likes to play basketball
Apply all the four steps of Bag of words model of NLP on the above given documents and generate the output.
Answer:
Step 1 Tokenization
Document 1 [Sahil, likes, to, play, cricket]
Document 2 [Sajal, likes, cricket, too]
Document 3 [Sajal, also, likes, to, play, basketball]
Step 2 Vocabulary Creation
Vocabulary: [Sahil, likes, to, play, cricket, Sajal, too, also, basketball]
Step 3 Document-Term Matrix (DTM) Construction
Step 4 Term Frequency-Inverse Document Frequency (TF-IDF) Calculation
| Document 1 | Document 2 | Document 3 | |
| Sahil likes to play cricket Sajal too also basketball |
1 1 1 1 1 o o o o |
o 1 o o 1 1 1 o o |
o 1 1 1 o 1 o 1 1 |
TF-IDF values for each term in each document can be calculated using the term frequency and inverse document frequency formulas, which provide a measure of the importance of each term in each document relative to the entire corpus.
star.
Value Point
- It is used to convert text into numeric form for NLP.
Key steps:
- Break text (Tokenize)
- Make list of unique words
- Count words per document
- Weight words using TF-IDF