Question

what is the class interval?
(there is a chart on the right with columns like amount of sugar (g) and frequency (f), with some values in the rows below, and some colored squares with numbers 7, 6, 8, etc. on the left.)

Explanation:

Step1: Identify class limits

Take a class, e.g., $26.0-32.0$

Step2: Calculate interval size

Subtract lower from upper limit: $32.0 - 26.0 = 6.0$

Step3: Verify with another class

Take $20.0-26.0$: $26.0 - 20.0 = 6.0$

Answer:

$6.0$