A basketball player has improved his scoring ability. During a game, he can be expected to make

Question:

A basketball player has improved his scoring ability. During a game, he can be expected to make 12 shots.
a. Give a bound on the probability that he makes at least 16 shots.
b. If the number of shots successfully scored by the same basketball player is known to have a standard deviation of 2.5, find a bound on the probability that he successfully makes between 7 and 17 shots.