You are a newspaper vendor selling San Pedro Times every morning. Before you get to work, you go to the printer and buy the day%u2019s paper for $0.25 a copy. You sell a copy of San Pedro Times for $1.00. Daily demand is distributed normally with mean = 250 and standard deviation =.50. At the end of each morning, any leftover copies are worthless and they go to a recycle bin.
a) How many copies of San Pedro Times should you buy each morning?
b) Based on a, what is the probability that you will run out of stock?