1. The problem statement, all variables and given/known data Trials of a biology experiment are performed, and each trial is independent of the other trials. Each experiment trial has a 0.13 probability of a success, and 0.87 probability of failure. (c) Let Y denote the random variable representing the number of trials up to and including the first success. Find an expression for the probability distribution of Y , then use MATLAB to compute and plot this function for the first 50 possible values. (d) Let Y be defined as in (c). Find an expression for and use MATLAB to compute Pr(Y < 9). (e) Let Y be defined again as in (c). Find a mathematical expression for and compute (using MATLAB) the probability that Y is less than or equal to 12 given that Y is greater than 8. 2. Relevant equations n/a 3. The attempt at a solution is part(c) just Pr(Y=y) = 0.87^(y-1)*0.13 part(d) Pr(Y<9) = [tex]\sum(0.87^(y-1)*0.13[/tex] and got no idea for part (e), need help please.