Introduction to Data Science MCQ Questions and Answers

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Each section contains 100 MCQs on Introduction to Data Science .

Point out the wrong statement.

A) Exploratory analyses are usually the final way B) Exploratory models are useful for discovering new connection C) Exploratory analysis alone should not be used for predicting D) All of the mentioned

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which of the following analysis are incredibly hard to infer?

A) Inferential B) Exploratory C) Causal D) Mechanistic

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following focuses on the discovery of (previously) unknown properties on the data?

A) Data mining B) Big Data C) Data wrangling D) Machine Learning

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which of the following approach should be used if you can't fix the variable?

A) randomize it B) non stratify it C) generalize it D) none of the mentioned

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Point out the correct statement.

A) Descriptive analysis is first kind of data analysis performed B) Descriptions can be generalized without statistical modelling C) Description and Interpretation are same in descriptive analysis D) None of the mentioned

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following technique is also referred to as Bagging?

A) Bootstrap aggregating B) Bootstrap subsetting C) Bootstrap predicting D) All of the mentioned

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which of the following approach should be used to ask Data Analysis question?

A) Find only one solution for particular problem B) Find out the question which is to be answered C) Find out answer from dataset without asking question D) None of the mentioned

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following is a key characteristic of a hacker?

A) Afraid to say they don't know the answer B) Willing to find answers on their own C) Not Willing to find answers on their own D) All of the mentioned

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Raw data should be processed only one time.

A) True B) False

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Point out the wrong statement.

A) Merging concerns combining datasets on the same observations to produce a result with more variables B) Data visualization is the organization of information according to preset specifications C) Subsetting can be used to select and exclude variables and observations D) All of the mentioned

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Introduction to Data Science MCQ Questions and Answers | Data Science MCQs