Consider the discrete random variable X given in the table below. Calculate the mean, variance, and standard deviation of X. X 4 12 14 16 17 20 P(X) 0.12 0.07 0.12 0.12 0.08 0.49 LL= o = O= What is the expected value of X?A baseball player has a batting average of 0.38. What is the probability that he has exactly 2 hits in his next ? at bats? A high school baseball player has a 0.1?8 batting average. In one game, he gets 8 at bats. What is the probability he will get at least 4 hits in the game