SOLUTION: If 80% of job applicants are able to pass a computer literacy test, find the mean, standard deviation and variance of the number of people who pass the exam in a sample of 150 appl

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Question 747374: If 80% of job applicants are able to pass a computer literacy test, find the mean, standard deviation and variance of the number of people who pass the exam in a sample of 150 applicants.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If 80% of job applicants are able to pass a computer literacy test, find the mean, standard deviation and variance of the number of people who pass the exam in a sample of 150 applicants.
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mean = np = 150*0.8
std = sqrt(npq) = sqrt(150*0.8*0.2)
variance = (std)^2
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Cheers,
Stan H.