How do you find the interval in a frequency table?

Answer 1

First, you decide how many intervals you need. (Can be between 5-15).

Then, you find the range (Max-Min=Range)

Next you divide the range by the amount of intervals you wanted.

The quotient is the width of your data

Example:

Intervals(Width=10 and Minimum=28)(When you add the width to the minimum, you should count the minimum too. Instead of 28+10=38, it would be 37 since the 28 count, and to check the answer you have to add ten going down)

28-37

38-47

48-57

58-67

68-77