Question 1049733
p(feel secure) = .8,  n = 88
P(x = 5) = binompdf(88, .8, 5)
P(x > 5) = 1 - P(x <= 5) = 1 - binomcdf(88,.8, 5)
p(x <=5) = binomcdf(88,.8. 5)