Posted - 10/26/2011 : 18:24:44 In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that:

(A) exactly two will have this mild side effect (B) at least three will have this mild side effect.

N = 14 (14 patients) X = 2 (exactly 2 will have this mild side effect) P = 0.10 (prob. of all patients using it will have a mild side effect; success) Q = 0.90 (1 - p = 1 - 0.10 = 0.9)