To find the class width, we use the formula:

$\text{Class width} = \frac{\text{Range}}{\text{Number of classes}}$

Given:

• Range = 115
• Number of classes = 8

Substitute the values into the formula:

$\text{Class width} = \frac{115}{8} = 14.375$

Since the class width must be a whole number, we round this to 14.

Thus, the class width is 14.

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Would you like to proceed with finding the lower and upper class limits?