1. The following table shows the grade of two students 1 and 2 \begin{tabular}{ccccccccccccccccc) Course & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & 12 & 13 & 14 & 15 & 16 W \hline S1 & C & B & B & B & A & B & A & D & C & C & C & A & A & B & B & FW S2 & C & C & D & C & A & C & D & C & C & B & B & D & A & F & B&C \end{tabular) Let $X$ be a random variable representing the grade by $X(A)=4, X(B)=3, X(C)=2, X(D)=1, X(F)=0$ (a) Compute the mean, median, maximum, minimum, variance (b) Construct a distribution table of each, and compare grupw? (c) Find the probabilities for each student i. $P(X=4)$ ii. $P(X