One of the initial clinical trials of the anti-math anxiety drug SHOVITALL tested for the presence of headaches as a side effect. In the trial, 450...

One of the initial clinical trials of the anti-math anxiety drug SHOVITALL™ tested for the presence of headaches as a side effect.  In the trial, 450 subjects were treated with 80mg of the drug, and 2.2% of the subjects developed headaches.  In the binomial distribution of these 450 subjects, what are the mean and standard deviation?   Use p = 0.022

n = 450, p = 0.022Expected value of X, Mean = µ = np = 450 ∗ 0.022 = 9.9Expectation or mean is: µ = 9.9ppStd Dev: σ = np(1 − p) = 450 ∗ (0.022)(1 − 0.022)√= 9.6822 ≈ 3.111623...