Free R Programming Language MCQ Questions and Answers

Question 1

What R syntax should I use to output "Hello World"?

Accepted Answer

All of the other answers are correct

Answer

"Hello World"

Answer

Hello World'

Answer

print("Hello World")

Question 2

R is a React alias.

Accepted Answer

FALSE

Answer

TRUE

Question 3

In R code, how do you add comments?

Accepted Answer

# This is a comment

Answer

// This is a comment

Answer

/* This is a comment

Question 4

You must specify a variable's data type in R.

Accepted Answer

FALSE

Answer

TRUE

Question 5

How do you make the variable x have the number 5 as its value?

Accepted Answer

x <- 5

Answer

x : 5

Answer

int x = 5

Question 6

Which function is frequently employed to combine elements?

Accepted Answer

Paste()

Answer

Concat()

Answer

Merge()

Answer

Join()

Question 7

How many variables with the same value are assigned in a single line?

Accepted Answer

var1 <- var2 <- var3 <- "Orange"

Answer

var1, var2, var3 = "Orange"

Answer

var1, var2, var3 <-"Orange"