Exercise

# Calculating Percentage From Your Contingency Table

Have a look at the contingency table of tobacco consumption and education you made in the last exercise. It's saved in your console as `st`

. Let's use it to calculate some percentages!

In this exercise you need to report your answers to one decimal place. You are free to do this manually, but if you want a quick way to do this through R you can use the `round()`

function. The first argument of `round()`

is the value that you want to round (this can be in the form of a raw number, or an equation), and the second argument is `digits =`

, where you specify the number of decimal places you want the number rounded to. For instance, `round(12.6734, digits = 2)`

would return the value `12.67`

.

Instructions

**100 XP**

- In your console, calculate the percentage of high school students who smoke 0-9g of tobacco per day.
- In your console, calculate what percentage of students who smoke the most are in university.
- Type your answers to one decimal place (without a percentage symbol) into your script