SOLUTION: One quarter of all residents of Centerville are under 22 years old. If a random sample of twenty Centerville residents is selected, find the probability that the sample will contai

Algebra ->  Probability-and-statistics -> SOLUTION: One quarter of all residents of Centerville are under 22 years old. If a random sample of twenty Centerville residents is selected, find the probability that the sample will contai      Log On


   



Question 1186319: One quarter of all residents of Centerville are under 22 years old. If a random sample of twenty Centerville residents is selected, find the probability that the sample will contain exactly five people who are under 22 years old. (The total population of Centerville is about 40,000.)
Write your answer as a decimal, rounded to three significant figures.

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
This is 20C5(1/4)^5*(3/4)^15=0.2023 or 0.202