2025年9月美国A卷 · 第 11 题

2025年9月美国A卷 · 原库模块 2 · Q11 原库参考解析

A department store sells pants in three lengths: short, regular, and long. The table summarizes the distribution of pant length, by color, for all the pants in the store.

A pair of pants is selected at random. What is the probability of selecting a pair of pants that is brown, given that the pair of pants is regular length? (Express your answer as a decimal or fraction, not as a percent.)