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MLP · Pandas data loading & cleaning

11 questions · 21 marks · 3 papers

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

Machine Learning Practice

Pandas data loading & cleaning

Official Paper

Examination Instructions & Guidelines

Solve on notebook/paper first before checking solutions.
MCQ: Exactly 1 option is correct. Negative marking applies.
MSQ: One or more options correct. Select all to score.
Scientific calculator allowed for all calculations.
Official answer key is sealed at the end of this sheet.

End Term · 31 Aug 2025 (FN)End Term

Read the passage below, then answer Q1–Q3
Based on the above data, answer the given subquestions.
Q1MSQ1 Mark·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
Q2MCQ2 Marks·Choose one option
Asked 3 times Key ↓
1. A
2. B
3. C
4. D
Q3MSQ2 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D

End Term · 31 Aug 2025 (AN)End Term

Read the passage below, then answer Q4–Q6
Based on the above data, answer the given subquestions.
Q4MSQ1 Mark·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
Q5MCQ2 Marks·Choose one option
Asked 3 times Key ↓
1. A
2. B
3. C
4. D
Q6MSQ2 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D

End Term · 22 Dec 2024 (AN)End Term

Q7MCQ2 Marks·Choose one option
Asked 3 times Key ↓
You have loaded a dataset with 1000 samples and 20 features into a Pandas DataFrame. Some samples have missing values for a few features. If you want to remove rows with fewer than 15 non-null values, what method would you use?
1. A
2. B
3. C
4. D
5. E
Read the passage below, then answer Q8–Q11
Based on the above data, answer the given subquestions
Q8MCQ2 Marks·Choose one option
Key ↓
Which of the following commands will return the total sales across all regions?
1. A
2. B
3. C
4. D
Q9MSQ2 Marks·Choose all correct options
Key ↓
Which of the following commands will return the names of employees in the ”North” region?
1. A
2. B
3. C
4. D
Q10MSQ3 Marks·Choose all correct options
Key ↓
Which of the following methods can be used to find the employee(s) with the highest sales?
1. A
2. B
3. C
4. D
Q11MCQ2 Marks·Choose one option
Key ↓
1. AThe total sales for each region.
2. BThe average sales for each month.
3. CThe average sales for each region.
4. DNone of these.

Official Key

Master Answer Key & Explanations

Official answer keys from IIT Madras BS past papers. Click any question to review.

Reveal Key

Q1A, B

Q2A

Q3A, B, D

Q4A, C

Q5A

Q6A, C

Q7B

Q8A

Q9A, B, C

Q10A, C, D

Q11C

Questions and answer keys are reproduced from the official IIT Madras BS papers. Topics and repeated question types are BTechi’s own grouping. BTechi is not affiliated with IIT Madras.