Question

a medication is 75% effective against a bacterial infection. find the probability that if 12 people take the medication, at least 1 person"s infection will not improve

Answer 1

Formula:

P(x) = (nCx)(p^x)[q^(n-x)]

Find P(0), then subtract that value from 1.

n = 12
p = .25
q = 1 - p

I'll let you take it from here.

Answer 2

Good