SOLUTION: According to insurance records a car with a certain protection system will be recovered 86% of the time. If 500 cars are randomly selected, what is the mean and standard deviation

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Question 1155678: According to insurance records a car with a certain protection system will be recovered 86% of the time. If 500 cars are randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen?

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
mean is np=0.86*500=430
variance is np(1-p)=430*0.14=60.2
sd is sqrt(V)=7.76