Probability and conditional probability · 第 7 题

Probability and conditional probability · 原库模块 1 · Q7 原库参考解析

Employees working for a customer service line at an electric company recorded all the calls last Monday and noted whether the caller asked for repairs and whether the caller asked about a bill. The results are summarized in the table below.



If a caller last Monday who asked about his or her bill is selected at random, which of the following is closest to the probability that the customer also asked for repairs?