BINOMIAL DISTRIBUTION 9) Market research has shown that the cornflakes "Superman" is eaten by 20% of the population. a) Find the probability that in a random sample of 10 people exactly 3 people eat "Superman" cornflakes. b) Find the mean and the standard deviation of the number of people who eat "Superman" cornflakes in a random sample of 25 people. c) How large must a random sample be if the probability that it contains at least one person who eat “Superman" cornflakes is to be greater then 0.95?

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