Data Science Miscellaneous MCQ Questions and Answers

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Each section contains 100 MCQs on Data Science Miscellaneous .

Which of the following function stacks 1D arrays as columns into a 2D array?

A) row_stack B) column_stack C) com_stack D) all of the mentioned

Discuss

Answer & Solution

Answer: Option B

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

The pooled estimator is a mixture of the group variances, placing greater weight on whichever has a larger sample size.

A) True B) False

Discuss

Answer & Solution

Answer: Option A

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

Point out the wrong statement.

A) Shiny is platform for creating interactive programs embedded in to web page B) Shiny is invented by R folks C) Time required to create data products using shiny is more D) All of the mentioned

Discuss

Answer & Solution

Answer: Option C

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

Which of the following is used for creating tree maps?

A) gvisGeoChart B) gvisTable C) gvisTreeMap D) all of the mentioned

Discuss

Answer & Solution

Answer: Option C

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

Minimizing the likelihood is the same as maximizing -2 log likelihood.

A) True B) False

Discuss

Answer & Solution

Answer: Option A

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

Which of the following theorem states that the distribution of averages of iid variables, properly normalized, becomes that of a standard normal as the sample size increases?

A) Central Limit Theorem B) Central Mean Theorem C) Centroid Limit Theorem D) All 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) The choice of an appropriate metric will influence the shape of the clusters B) Hierarchical clustering is also called HCA C) In general, the merges and splits are determined in a greedy manner D) All of the mentioned

Discuss

Answer & Solution

Answer: Option D

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

Which of the following gave rise to need of graphs in data analysis?

A) Data visualization B) Communicating results C) Decision making D) All of the mentioned

Discuss

Answer & Solution

Answer: Option D

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

Every open graphics device is assigned an integer greater than 2.

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 with respect to reproducibility.

A) Focuses on the validity of the data analysis B) The ultimate standard for strengthening scientific evidence C) Important when replication is impossible D) None 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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Data Science Miscellaneous MCQ Questions and Answers | Data Science MCQs