SOLUTION: Sixty percent of households say they would feel secure if they had​ $50,000 in savings. You randomly select 88 households and ask them if they would feel secure if they had&#

Algebra ->  Probability-and-statistics -> SOLUTION: Sixty percent of households say they would feel secure if they had​ $50,000 in savings. You randomly select 88 households and ask them if they would feel secure if they had&#      Log On


   

Question 1049733: Sixty percent of households say they would feel secure if they had​ $50,000 in savings. You randomly select 88 households and ask them if they would feel secure if they had​ $50,000 in savings. Find the probability that the number that say they would feel secure is​ (a) exactly​ five, (b) more than​ five, and​ (c) at most five.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
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)