2025年6月美国B卷 · 第 9 题

2025年6月美国B卷 · 原库模块 2 · Q9 原库参考解析

A data set of the orbital periods, rounded to the nearest whole number of Earth days, for 13 of Jupiter’s moons is represented in the dot plot. An additional moon with an orbital period of 251 days is added to the original data set to create a new data set of 14 orbital periods. Which statement best compares the mean and median of the new data set to the mean and median of the original data set?