54% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball...

54% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball fan. Find the probability that the number who considers themselves baseball fans is (a) exactly five, (b) at least six, and (c) less than four.

(a) P(5)=