An experiment consists of selecting a number at random from the set of numbers {1, 2, 3, 4, 5, 6, 7, 8, 9}. Find the probability that the number selected is as follows. (a) Less than 9 (b) Even (c) Less than 5 and odd (a) Find the probability that the number selected is less than 9. Pr(less than 9)=nothing (Type an integer or a simplified fraction.) (b) Find the probability that the number selected is even. Pr(even)=nothing (Type an integer or a simplified fraction.) (c) Find the probability that the number selected is less than 5 and odd. Pr(less than 5 and odd)=nothing (Type an integer or a simplified fraction.)