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Let X be a binomial random variable with E(X) = 7 and Var(X) = 2.1. (a)...

Let X be a binomial random variable with E(X) = 7 and Var(X) = 2.1.


(a) [5 pts] Find the parameters n and p for the binomial distribution.

n =

p =


(b) [5 pts] Find P(X = 4). (Round your answer to four decimal places.)


(c) [5 pts] Find P(X > 12)

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