Posted by jon on Saturday, June 28, 2014 at 9:30pm.
80% of the American population likes pizza. If 8 Americans are chosen at random, find the probability that 6 of them like pizza.

math  Amanda, Friday, December 11, 2015 at 12:39pm
n=8, p=.80, q=1.80=0.20, x=6
P(x)=nCxPxQnx
P(x)=8C6(0.80)6(0.20)2
= (28)x(0.262144)x(0.04)
=0.294