Daily sales at a store follow a normal distribution with mean $10,000. On 95 percent of days the store sells less than $13,290. Assume daily sales are independent from day to day. (a) (5 points) In the next five days, find the probability that daily sales will exceed $12,000 in more than two days. b) (4 points) In the next 16 days, find the probability that their average daily sales will exceed $10,500