ACT Practice Test 2 500 Grade Practice Test Questions TOC | Lumos Learning

ACT Practice Test 2 Question & Answer Key Resources ACT Mathematics Practice Questions

ACT Mathematics Practice Questions ACT Practice Test 2

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A research scientist collected information from a group of 500 randomly selected adults over the age of 30 to study hearing ability. Data collected from each person included the person’s age and the person’s ability to hear an electronic buzz at a specified frequency. The data is displayed below.

Knowing that a person cannot hear the buzz, what is the probability that the person is age 50+?