Twenty four subjects volunteer for a study of a new cold medicine. Eight of the volunteers are ages 20-39, 6 are ages 40-59, and 10 are age 60 or older. if 6 volunteers are selected at random, find the following probabilities. a) the probability that all the volunteers selected are ages 20-39 b) the probability that 4 of the volunteers are ages 20-39 and 2 are age 60 or older c) the probability that 2 of the volunteers are ages 40-59

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Twenty four subjects volunteer for a study of a new cold medicine. Eight of the volunteers are ages 20-39, 6 are ages 40-59, and 10 are age 60 or older. if 6 volunteers are selected at random, find the following probabilities.

a) the probability that all the volunteers selected are ages 20-39

b) the probability that 4 of the volunteers are ages 20-39 and 2 are age 60 or older

c) the probability that 2 of the volunteers are ages 40-59

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