Exercise

# Cumulative Frequency

Let's try some calculations using frequencies.

Remember, you can select a specific variable using either `$`

or `[,]`

. If you need to check the variables in the data set, remember that you can always use the `str()`

function in your console.

Instructions

**100 XP**

- In your console, look at how many cars have 3, 4 or 5 gears using
`table()`

on the variable`gear`

from`mtcars`

. - In your console, calculate how many of the cars have 3 or 5 gears as a percentage of the total number of cars.
- In your script, report this percentage.