SOLUTION: A study found that 1% of Social Security recipients are too young to vote. If 800 Social Security recipients are randomly selected, find the mean, variance, and standard deviation

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Question 1156515: A study found that 1% of Social Security recipients are too young to vote. If 800 Social Security recipients are randomly selected, find the mean, variance, and standard deviation of the number of recipients who are too young to vote.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
mean is np=800*0.01=8
variance is np(1-p)=8*0.99=7.92
sd is sqrt(V)=2.81