Explore topic-wise MCQs in Data Science.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Data Science knowledge and support exam preparation. Choose a topic below to get started.

1.

If X predicts Y, it does mean X causes Y.

A. True
B. False
Answer» C.
2.

Which of the following figure correctly shows approximate order of difficulty?

A. <a href="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9a.png"><img alt="The figure correctly shows approximate order of difficulty - option a" class="alignnone size-full wp-image-179363" height="300" src="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9a.png" width="292"/></a>
B. <a href="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9b.png"><img alt="The figure correctly shows approximate order of difficulty - option b" class="alignnone size-full wp-image-179364" height="300" sizes="(max-width: 300px) 100vw, 300px" src="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9b.png 300w, https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9b-150x150.png 150w" width="300"/></a>
C. <a href="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9c.png"><img alt="The figure correctly shows approximate order of difficulty - option c" class="alignnone size-full wp-image-179365" height="300" src="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9c.png" width="297"/></a>
D. All of the mentioned
Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9b.png"><img alt="The figure correctly shows approximate order of difficulty - option b" class="alignnone size-full wp-image-179364" height="300" sizes="(max-width: 300px) 100vw, 300px" src="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9b.png 300w, https://www.sanfoundry.com/wp-content/uploads/2015/10/data-science-questions-answers-analysis-experimental-design-q9b-150x150.png 150w" width="300"/></a>
3.

Which of the following data mining technique is used to uncover patterns in data?

A. Data bagging
B. Data booting
C. Data merging
D. Data Dredging
Answer» E.
4.

Which of the following is commonly referred to as data fishing ?

A. Data bagging
B. Data booting
C. Data merging
D. None of the mentioned
Answer» E.
5.

Which of the following is a good way of performing experiments in data science?

A. Measure variability
B. Generalize to the problem
C. Have Replication
D. All of the mentioned
Answer» E.
6.

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
Answer» B. non stratify it
7.

Which of the following is the top most important thing in data science?

A. answer
B. question
C. data
D. none of the mentioned
Answer» C. data