Why operators drive computation in R Programming - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add two numbers and print the result.

R Programming

result <- 5 [1] 3
print(result)

Drag options to blanks, or click blank then click option'

A+

B-

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using subtraction or multiplication instead of addition.

The plus operator + adds two numbers together.

2fill in blank

medium

Complete the code to multiply two numbers and print the result.

R Programming

result <- 4 [1] 7
print(result)

Drag options to blanks, or click blank then click option'

A/

B-

C+

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using addition or division instead of multiplication.

The asterisk * operator multiplies two numbers.

3fill in blank

hard

Fix the error in the code to divide two numbers and print the result.

R Programming

result <- 10 [1] 2
print(result)

Drag options to blanks, or click blank then click option'

A*

B+

C/

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using multiplication or subtraction instead of division.

The forward slash / operator divides the first number by the second.

4fill in blank

hard

Fill both blanks to create a named vector with names for the numbers 4 and 5.

R Programming

squares <- c([1] = 4, [2] = 5)
print(squares)

Drag options to blanks, or click blank then click option'

Afour

Bsix

Cfive

Dseven

Attempts:

3 left

💡 Hint

Common Mistakes

Using names that do not match the vector values.

The names four and five label the vector elements for 4 and 5.

5fill in blank

hard

Fill all three blanks to create a vector of numbers, filter those greater than 3, and square them.

R Programming

numbers <- c([1], [2], [3])
squares <- numbers[numbers > 3]^2
print(squares)

Drag options to blanks, or click blank then click option'

A2

B4

C5

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using only numbers less than or equal to 3.

The vector contains 2, 4, and 5. Only 4 and 5 are greater than 3 and get squared.