Graphing Skills #3

• An axis must be correctly scaled, or spaced out, in order to display the information properly

• The first step is to find the RANGE of the data

Scaling an axis

The range describes the difference between the highest and lowest values in the data set.

• Range = Largest value - Smallest value

​Step 1: Finding the range of the variable:

Divide the range by the number of intervals you want.

**IMPORTANT: consider how many spaces you have in your graph. You don’t want your data too spaced or too smooshed together

​Step 2: Divide

• Use your calculated value and round to the closest whole number.

• Each interval much be the same amount each time

​Step 3: Label with Rounded numbers