Suppose there are 21 Mathematicians and 18 Statisticians, from which 12 will be selected to serve in the Senate. Assuming that each person is equally likely to be chosen and that the individual is selected at random, find the probability that the Senate consists of the following. (Round answer to 4 decimal places. If your answer is very small use scientific notation out to 4 decimal places for example 3.3421E-6.)