Question #10156

Hi, I need help with a homework question that I am working on. The answer and how you came to the answer would be very helpful. This is the question:
Assume a binomial probability distribution with n = 40 and π = .55. Compute the following:
a. The mean and standard deviation of the random variable.
b. The probability that X is 25 or greater.
c. The probability that X is 15 or less.
d. Thr probability that X is between 15 and 25, inclusive.
Thanks!

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