Question

the parallel boxplots below display the quiz grades (out of 30) for two of mrs. smiths statistics classes. which class performed better on this quiz? class 1 performed better because their scores ranged from 12 to 30. class 1 performed better because their median score is higher than the median score for class 2. class 2 performed better because their median score is higher than the median score for class 1. class 2 performed better because the distribution of quiz grades is approximately symmetric. class 1 class 2 12 14 16 18 20 22 24 26 28 30 quiz grades

Explanation:

When comparing two box - plots, the median is a key measure. A higher median indicates that, on average (in terms of the middle value), the class performed better. Symmetry (as in the last option) does not directly imply better performance. The range (first option) only shows the spread of data, not the central tendency.

Answer:

Class 2 performed better because their median score is higher than the median score for class 1.