First let’s remind ourselves of some of the popular **graphs** used to display data.

The first selection of graphs we are looking at are all types of **frequency graph**, that is, they all tell us how much of different categories exist

**Bar Chart**

In a **bar chart** we label our categories along an x-axis and label our frequency on an x-axis. A pictogram is an alternative sometimes used, where we choose a picture as a **key** to represent a certain frequency

**Example**

**Exercise**

This is exercise 12A from page 178 of the textbook:

The answers are below: