These box plots show daily low temperatures for a sample of days in two different towns.

Given:

The box plots show daily low temperatures for a sample of days in two different towns.

We need to determine the most appropriate comparison of the spreads.

Interquartile range of town A:

The interquartile range can be determined by subtracting the end values of the boxes.

Thus, we have;

Interquartile range = 30 - 15

Interquartile range = 15

Thus, the interquartile range for town A is 15.

Interquartile range for town B:

The interquartile range for town B is given by

Interquartile range = 40 - 20

Interquartile range = 20

Thus, the interquartile range for town B is 20.

Hence, the interquartile range (IQR) for town A, 15° is less than the IQR for town B, 20°

Hence, Option A is the correct answer.

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed