Quiz for R Beginners

Quiz 1

Beginner Level

This fun quiz is the perfect way for R beginners to gauge their skills in a flash! Whether you're prepping for an interview or just started learning R, it will quickly assess if you've got the basics down from data types to installing packages. Complete it to see if you can:

- Master the fundamentals like R's environment, vectors, and functions
- Import, analyze, and summarize data using key R abilities
- Write basic R code the right way with proper syntax and comments

Take this short 10 question quiz to gain confidence in core R skills for data science and analytics!

1 / 10

What is R?

A programming language for statistical computing and graphics

A software environment for statistical computing and graphics

A software package for data analysis

None of the above

2 / 10

What is the default environment in R called?

Console

IDE

Workspace

Global Environment

3 / 10

What is the correct way to assign the value 5 to the variable x in R?

x=5

5 -> x

x <- 5

x == 5

4 / 10

What is the class of the object c(1,2,3)?

integer

numeric

vector

array

5 / 10

What function is used to install packages in R?

install.packages()

require()

library()

load()

6 / 10

Which of the following is used to comment your R code?

//

#

/**/

' '

7 / 10

What does the R function c() do?

Connect to a database

Clear the console

Create a new variable

8 / 10

Which function is used to read data from a file into R?

read()

load()

import()

read.csv()

9 / 10

What is the data type of TRUE in R?

character

integer

logical

numeric

10 / 10

How do you calculate the mean of a numeric vector called x in R?

mean(x)

avg(x)

x.mean()

calculateMean(x)

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Quiz for R Beginners

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