Explore topic-wise MCQs in Data Science.

This section includes 13 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.

PCA is most useful for non linear type models.

A. True
B. False
Answer» C.
2.

Which of the following is one of the largest boost subclass in boosting?

A. variance boosting
B. gradient boosting
C. mean boosting
D. all of the mentioned
Answer» C. mean boosting
3.

Which of the following is statistical boosting based on additive logistic regression?

A. gamBoost
B. gbm
C. ada
D. mboost
Answer» B. gbm
4.

Which of the following library is used for boosting generalized additive models?

A. gamBoost
B. gbm
C. ada
D. all of the mentioned
Answer» B. gbm
5.

Which of the following method options is provided by train function for bagging?

A. bagEarth
B. treebag
C. bagFDA
D. all of the mentioned
Answer» E.
6.

WHICH_OF_THE_FOLLOWING_IS_ONE_OF_THE_LARGEST_BOOST_SUBCLASS_IN_BOOSTING_??$

A. variance boosting
B. gradient boosting
C. mean boosting
D. all of the Mentioned
Answer» C. mean boosting
7.

PCA_is_most_useful_for_non_linear_type_models.$

A. True
B. False
Answer» C.
8.

Which of the following is statistical boosting based on additive logistic regression ?

A. gamBoost
B. gbm
C. ada
D. mboost
Answer» B. gbm
9.

The principal components are equal to left singular values if you first scale the variables.

A. True
B. False
Answer» C.
10.

Which of the following library is used for boosting generalized additive models ?

A. gamBoost
B. gbm
C. ada
D. all of the Mentioned
Answer» B. gbm
11.

Which of the following is correct with respect to random forest?

A. Random forest are difficult to interpret but often very accurate
B. Random forest are easy to interpret but often very accurate
C. Random forest are difficult to interpret but very less accurate
D. None of the Mentioned
Answer» B. Random forest are easy to interpret but often very accurate
12.

Which of the following method options is provided by train function for bagging ?

A. bagEarth
B. treebag
C. bagFDA
D. all of the Mentioned
Answer» E.
13.

Predicting with trees evaluate _____________ within each group of data.

A. equality
B. homogeneity
C. heterogeneity
D. all of the Mentioned
Answer» C. heterogeneity