5. According to a study, there is roughly an 80% chance that a person of age 20 years will be alive at 65 years. Suppose that three people of age 20 years are selected at random. Determine the probability distribution of the number alive at age 65. Also, find the probability that the number alive at age 65 will be а. Ехactly 2 b. At most one C. At least one
5. According to a study, there is roughly an 80% chance that a person of age 20 years will be alive at 65 years. Suppose that three people of age 20 years are selected at random. Determine the probability distribution of the number alive at age 65. Also, find the probability that the number alive at age 65 will be а. Ехactly 2 b. At most one C. At least one
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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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Transcribed Image Text:5. According to a study, there is roughly an 80% chance that a person of age 20 years will be alive at
65 years. Suppose that three people of age 20 years are selected at random. Determine the
probability distribution of the number alive at age 65. Also, find the probability that the number
alive at age 65 will be (
а. Ехactly 2
b. At most one
С.
At least one
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