2024年5月北美B卷 · 第 16 题

2024年5月北美B卷 · 原库模块 2 · Q16 原库参考解析

For an exercise physiology study, 75 participants were assigned to an activity, and their average heart rate while engaged in the activity was recorded. The table summarizes the results of this study.

One of these participants will be selected at random. What is the probability of selecting a participant who was assigned to the swimming activity given that the participant had an average heart rate of less than 130 beats per minute while engaged in an activity? (Express your answer as a decimal or fraction, not as a percent.)