1. EX and (X). As in class, we decide to have some fun with the flip of a quarter. If it comes up heads you win S60. If it comes up tails you lose $40. (a) What are ElX) and (X) if Pr(Heads) = 0.50 and Pr(Tails) = 0.50? (b) What are E[X] and (X) if Pr(Heads)-0 .40 and Pr(Tails) 0.60