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

Algebra.Com
Question 1161336: If 80% of job applicants are
able to pass a computer literacy test, find the mean,
variance, and standard deviation of the number of
people who pass the examination in a sample of
150 applicants.

Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
mean is np=150*0.8=120 applicants
variance is np(1-p)=120*0.2=24 applicants^2
sd is sqrt (V)=4.90 applicants

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