2024年6月北美A卷 · 第 12 题

2024年6月北美A卷 · 原库模块 2 · Q12 原库参考解析

The table shows the distribution of two types of trees at two different sites. If a tree represented in the table is selected at random, what is the probability of selecting tree from site A, given that the tree is a red maple? (Express your answer as a decimal or fraction, not as a percent.)