2025年11月国际B卷 · 第 6 题

2025年11月国际B卷 · 原库模块 2 · Q6 原库参考解析

The table shows the distribution of people in a certain city by age group.

If a person in this city is selected at random, which of the following is closest to the probability of selecting a person who is greater than 65 years old, given that the person is at least 18 years old?