Explore topic-wise MCQs in R Programming.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your R Programming knowledge and support exam preparation. Choose a topic below to get started.

1.

WHICH_OF_THE_FOLLOWING_IS_USED_TO_FIND_VARIANCE_OF_ALL_VALUES_??$

A. var()
B. sd()
C. mean()
D. all of the mentioned
Answer» B. sd()
Discussion
2.

The_purpose_of_fisher.test()_is_________test_for_contingency_table.$

A. Chisq
B. Fisher
C. Prop
D. None of the mentioned
Answer» C. Prop
Discussion
3.

Which of the following compute analysis of variance table for fitted model ?

A. ecdf()
B. cum()
C. anova()
D. all of the mentioned
Answer» D. all of the mentioned
Discussion
4.

Which of the following is lattice command for producing boxplots ?

A. plot()
B. bwplot()
C. xyplot()
D. all of the mentioned
Answer» C. xyplot()
Discussion
5.

Which of the following is tool for checking normality ?

A. qqline()
B. qline()
C. anova()
D. all of the mentioned
Answer» B. qline()
Discussion
6.

Which of the following determine the least-squares regression line ?

A. histo()
B. lm
C. barlm()
D. all of the mentioned
Answer» C. barlm()
Discussion
7.

Which of the following groups values of a variable into larger bins ?

A. cut
B. col.max(x)
C. stem
D. which.max(x)
Answer» B. col.max(x)
Discussion
8.

Which of the following is tool for chi-square distributions ?

A. pchisq()
B. chisq()
C. pnorm
D. all of the mentioned
Answer» D. all of the mentioned
Discussion
9.

Which of the following lists names of variables in a data.frame ?

A. quantile()
B. names()
C. barchart()
D. all of the mentioned
Answer» B. names()
Discussion
10.

Which of the following adds marginal sums to an existing table ?

A. par()
B. prop.table()
C. addmargins()
D. all of the mentioned
Answer» C. addmargins()
Discussion