R Programming quiz

Answer the all questions

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1.	What is the mode of ‘a’ in the following R code? a <- c b <- c(TRUE, TRUE)
a.	Numeric
b.	Character
c.	Integer
d.	Logical

2.	R files has an extension ______
a.	.R
b.	.S
c.	.Rp
d.	.c

3.	Full Form of GUI is ___________________
a.	Guided User Interface
b.	Graphical User Interface
c.	Guided Used Interface
d.	Graphical User Interval

4	In which IDE we can interact with R?
a.	R studio
b.	Console
c.	GCC
d.	Power shell

5.	R is mostly used in ______________
a.	Problem solving
b.	Statistics
c.	Probability
d.	All of the mentioned

6.	What is the meaning of “<-“?
a.	Functions
b.	Loops
c.	Addition
d.	Assignment

7.	What is the meaning of the following R function? prinprint( sqrt(2) )t( sqrt(2) )
a.	1.414314
b.	1.414214
c.	Error
d.	14.1414

8.	Point out the correct statement?
a.	Blocks are evaluated until a new line is entered after the closing brace
b.	Single statements are evaluated when a new line is typed at the start of the syntactically complete statement
c.	The if/else statement conditionally evaluates two statements
d.	Break will execute a loop while a condition is true

9.	Which of the following R syntax is correct for while loop?
a.	while ( statement1 ) statement2
b.	while ( statement1 ) else statement2
c.	while ( statement1 ) do statement2
d.	while ( statement2 ) doelse statement2

10.	_______ is used to break the execution of a loop.
a.	next
b.	skip
c.	break
d.	delete

11.	Which of the following should be preferred for evaluation from list of alternatives?
a.	subsett
b.	eval
c.	switch
d.	set