Suppose x is a binomial random variable with n = 20 and p = .7.
a. Find P(x = 14).
b. Find P(x ≤ 12).
c. Find P(x >> 12).
d. Find P(9 ≤ x ≤ 18).
e. Find P(8<x > 18).
f. Find m, σ2 , and σ.
g. What is the probability that x is in the interval µ ± 2σ ?
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