SOLUTION: If 5 apples in a barrel of 25 apples are rotten, what is the expected number of rotten apples in a random sample of 200 apples?

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Question 1081154: If 5 apples in a barrel of 25 apples are rotten, what is the expected number of rotten apples in a random sample of 200 apples?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
5/25=0.2 probability that an apple is rotten.
E(X)=n*p(x)
200*0.2=40 apples