Data Science Questions and Answers – Types of Questions – 2

This set of Data Science Questions and Answers for freshers focuses on “Types of Questions – 2”

1. Which of the following type of data science question is missing in the figure?
The type of data science is exploratory used to find relationships
a) Correlative
b) Exploratory
c) Relative
d) None of the mentioned
View Answer

Answer: b
Explanation: Exploratory analysis is used to find relationships about you didn’t know about.

2. Point out the correct statement.
a) Descriptive analysis can be more useful for defining future studies
b) Correlation does imply causation
c) Inference is commonly the goal of statistical model
d) None of the mentioned
View Answer

Answer: b
Explanation: Inference depends heavily on the sampling scheme.

3. Which of the following uses relatively small amount of data to estimate about bigger population?
a) Inferential
b) Exploratory
c) Causal
d) None of the mentioned
View Answer

Answer: a
Explanation: Inferential statistics is concerned with making predictions or inferences about a population from observations and analyses of a sample.

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4. Which of the following analysis helps out to find the effect of variable change?
a) Inferential
b) Exploratory
c) Causal
d) None of the mentioned
View Answer

Answer: c
Explanation: Causal Analysis provides the real reason why things happen and hence allows focused change activity.

5. Point out the correct statement.
a) Exploratory analyses are not usually the final way
b) Inferential models are useful for discovering new connection
c) Inference involves estimating uncertainty
d) All of the mentioned
View Answer

Answer: c
Explanation: Statistical inference is the process of deducing properties of an underlying distribution by analysis of data.

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6. Which of the following relationship are usually identified as average effects?
a) Descriptive
b) Causal
c) Predictive
d) None of the mentioned
View Answer

Answer: b
Explanation: A correlation is a measure or degree of relationship between two variables.

7. Which of the following is more applicable to the below figure?
data-science-questions-answers-freshers-q7
a) Descriptive
b) Causal
c) Predictive
d) None of the mentioned
View Answer

Answer: a
Explanation: Google trends helps to describe the set of data.

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8. Which of the following analysis is usually modeled by deterministic set of equations?
a) Predictive
b) Causal
c) Mechanistic
d) All of the mentioned
View Answer

Answer: c
Explanation: Equations are based on physical/engineering science.

9. Which of the following analysis are incredibly hard to infer?
a) Inferential
b) Exploratory
c) Causal
d) Mechanistic
View Answer

Answer: d
Explanation: Mechanistic analysis are hard to infer except for simple simulations.
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10. Accurate prediction depends heavily on measuring the right variables.
a) True
b) False
View Answer

Answer: a
Explanation: Prediction is very hard, especially for future references.

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Here’s the list of Best Books in Data Science.

To practice all areas of Data Science for Freshers, Here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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