Question

23 how do the spreads of each data set compare? bar graphs for 10th graders (x-axis: 0-4, 5-9, 10-14, 15-19, 20-24; y-axis: # of students) and 12th graders (same x-axis, y-axis). options: a the 12th graders are skewed right; b the spreades are about the same; c the 12th graders have a higher spread; d the 10th graders have a higher spread

Explanation:

To compare the spreads, we look at the range (or the width of the data distribution). Both 10th and 12th graders' data sets have the same range of t - shirts (0 - 24). The distribution of frequencies across the intervals also shows similar spread characteristics. Option A is about skewness, not spread. Option C and D suggest different spreads, but visually, the spreads (range and distribution width) are about the same.

Answer:

B. The spreads are about the same