100% Free PCAD Practice Exam Questions and Answers

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Total 205 Questions | Updated On: Sep 24, 2026

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Question 1

How can missing values in a DataFrame be handled in Pandas?

A : Removing the rows with missing values

B : Interpolating missing values

C : Replacing missing values with a specific value

D : All of the above

Answer: D

Question 2

Which of the following is NOT a data structure supported by Pandas?

A : Array

B : DataFrame

C : Panel

D : Series

Answer: A

Question 3

What is the purpose of the np.random.rand() function in NumPy?

A : To shuffle the elements of an array randomly.

B : To generate an array of random integers.

C : To generate an array of random floats between 0 and 1.

D : To calculate the standard deviation of an array.

Answer: C

Question 4

Which of the following evaluation metrics can be used for classification problems in SciKit-Learn?

A : Accuracy

B : F1 Score

C : R2 Score

D : Mean Squared Error (MSE)

Answer: A

Question 5

What is the default file format for saving Matplotlib plots?

A : JPG

B : PDF

C : PNG

D : SVG

Answer: C

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Total 205 Questions | Updated On: Sep 24, 2026

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