A survey indicates that 20% of the people who earn less than $42000 per year are homeowners. If a sample of 15 people who earn less than $42000 per year is randomly selected, what is the probability that at least 2 from 15 people are homeowners. Find the mean and standard deviation of random variable X, where X is the number of people who earn less than $42000 out of 15 selected
A survey indicates that 20% of the people who earn less than $42000 per year are homeowners. If a sample of 15 people who earn less than $42000 per year is randomly selected, what is the probability that at least 2 from 15 people are homeowners. Find the mean and standard deviation of random variable X, where X is the number of people who earn less than $42000 out of 15 selected
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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A survey indicates that 20% of the people who earn less than $42000 per year are
homeowners. If a sample of 15 people who earn less than $42000 per year is randomly
selected, what is the probability that at least 2 from 15 people are homeowners. Find the
mean and standard deviation of random variable X, where X is the number of people who
earn less than $42000 out of 15 selected
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