Question

Thirty-two percent of adults did not visit their physicians' offices last year. The probability, rounded to
four decimal places, that in a random sample of 8 adults, exactly 3 will say they did not visit their
physicians' offices last year is:

Answer 1

P(X = 3) = nCx * p^x * (1-p)^n-x

8c3(.32)^3(1-.32)^8-3

8C3(.32)^3(.68)^5
=.2668