Data types & variables

What is the type of

"3.14" ?

• Boolean

• String

• Float

• Integer

Answer explanation

Because of the dble quotes, it's a STRING.

n_students = 250

How would you check the type of n_students?

• which(n_students)

• data(n_students)

• type(n_students)

• typeof(n_students)

What is the output of the following:

6.26 > 5

• True

• False

• Error

Answer explanation

You can compare floats to integers, so the answer would be a boolean with the value True

How would you create a new variable called my_university?

• my_university = McMaster

• my_university ==

  "McMaster"

• my_university is "McMaster"

• my_university = "McMaster"

Correct the code below:

my_age = 29

"I am my_age years old"

• "I am " + my_age + " years old"

• "I am {my_age} years old"

• f"I am {my_age} years old"

Answer explanation

my_age is an INTEGER so you need to use a formatted STRING f"... { } ..." to include my_age in your string