45 of households say they would feel secure if they had 5000

45% of households say they would feel secure if they had $50,000 in savings. You randomly select 8 households and ask them if they would feel secure if they had $50,000 in saving. Find the probability that the number that they say would feel secure is (a)exactly five, (b) more than 5, (C) at most 5.

Solution

(a) exactly five