Introduction To R Programming - Study Mode

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[#71] In the expression x <- 4 in R, what is the class of 'x' as determined by the `class()' function?

(A) Character

(B) Numeric

(C) Integer

(D) Word

Correct Answer

(B) Numeric

[#72] Functionality of R is divided into a number of . . . . . . . .

(A) Functions

(B) Domains

(C) Packages

(D) Files

Correct Answer

(A) Functions

[#73] What will be the output of the following R code? x <- (“a”, “b”)
as.logical(x)

(A) a b

(B) "a" "b"

(C) 1 1

(D) Error

Correct Answer

(D) Error

[#74] What is the mode of b in the following R code? b <- c(TRUE, TRUE, 1)

(A) Numeric

(B) Character

(C) Integer

(D) Logical

Correct Answer

(A) Numeric

[#75] Which of the following command is used to print an object "x" in R?

(A) printf(x)

(B) print(x)

(C) printx

(D) print[x]

Correct Answer

(B) print(x)