Question 894694
Q:
It is estimated that 45% of households own a riding lawn mower. A sample of 11 households is studied. What is the probability that more than 8 of these own a riding lawn mower?
A:
X ~ Binomial(n = 11, p = 0.45)
P(X > 8) = {{{sum((matrix(2,1,11,x))(0.45^x)(0.55^(11-x)), x = 9, 11)}}} = {{{highlight(0.0148)}}}