SOLUTION: A recent survey found that 61% of all adults over the age of fifty wear glasses for driving. In a random sample of 60 adults over the age of fifty, use the binomial distribution to

Question 1122180: A recent survey found that 61% of all adults over the age of fifty wear glasses for driving. In a random sample of 60 adults over the age of fifty, use the binomial distribution to determine what is the mean and standard deviation of those that wear glasses.
Select one:
a. mean: 60; standard deviation: 14.274
b. mean: 60; standard deviation: 3.778
c. mean: 36.6; standard deviation: 3.778
d. mean: 36.6; standard deviation: 14.274
Thanks very much
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
mean is np=60*0.61=36.6
variance is np(1-p)=36.6*0.39=14.27
sd is sqrt (var)=3.78
C
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