Data Collection and Preprocessing MCQ Questions and Answers

1.
Which of the following process involves structuring datasets to facilitate analysis?

A. Data tidying

B. Data mining

C. Data booting

D. All of the mentioned

A. HDF5 is a hierarchical format

B. HDF5 does not support range of different data types

C. HDF5 is used for storing small datasets

D. None of the mentioned

A. True

B. False

A. quantile

B. quantity

C. quantiles

D. all of the mentioned

A. Variables with character values should be made less descriptive

B. Variables with character values should usually be made into factor variable

C. Common variables are used to apply transforms

D. All of the mentioned