In the U. S.: 45% of all people have Blood Type O

40% have Blood Type A

11% have Blood Type B

4% have Blood Type AB.

(a) Find the probability a single person does not have Blood Type AB.

(b) Find the probability a single person has either Blood Type A or Blood Type B.

(c) In a group of 8 people, what is the probability that everyone has Blood Type O.

(d) Find the probability that in a group of 25 people, at least one person has Blood Type AB.