55 % percent 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 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.
?(a) Find the probability that the number that say they would feel secure is exactly five.
Hello my i am having trouble on how they came up with the answers.I know you use
(a) P(x=5)=
(b) P(x>5)=
(c) P(x<5)