#### Answer

The class width is 5.

#### Work Step by Step

The class width for grouped data is found by looking at the lower class limits of two consecutive classes (rows) on a frequency distribution table and then finding the difference between those two lower class limits.
For instance, the first two classes (rows) of data have lower class limits of 0 and 5. The difference is 5 - 0 = 5. This is the class width.