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

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

A. Inferential

B. Exploratory

C. Causal

D. Mechanistic

A. Data mining

B. Big Data

C. Data wrangling

D. Machine Learning

A. randomize it

B. non stratify it

C. generalize it

D. none of the mentioned

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

A. Bootstrap aggregating

B. Bootstrap subsetting

C. Bootstrap predicting

D. All of the mentioned

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

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

A. True

B. False

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