The probability is 0.80 that a person age 20 will be alive at 65. Suppose 500 people age 20 are selected at random. Determine the probability that a.Exactly 390 of them will be alive at age 65. b.Between 375 and 425 of them, inclusive, will be alive at age 65.

The probability is 0.80 that a person age 20 will be alive at 65. Suppose 500 people age 20 are selected at random. Determine the probability that a.Exactly 390 of them will be alive at age 65. b.Between 375 and 425 of them, inclusive, will be alive at age 65.

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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The probability is 0.80 that a person age 20 will be alive at 65. Suppose 500 people age 20 are selected at random. Determine the probability that

a.Exactly 390 of them will be alive at age 65.

b.Between 375 and 425 of them, inclusive, will be alive at age 65.

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