. 65% of the population of a town is over 20 years old. If a random sample of 30 p the probability that it will have at least 18 people over 20 years old.
. 65% of the population of a town is over 20 years old. If a random sample of 30 p the probability that it will have at least 18 people over 20 years old.
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:6. 65% of the population of a town is over 20 years old. If a random sample of 30 people is taken, find
the probability that it will have at least 18 people over 20 years old.
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