Sales volume of the Saturday edition of the Daily Express paper is much higher than other days, due to the large number of casual reader sales. Casual Saturday edition sales are normally distributed with a mean of 30,000 and a standard deviation of 3000 copies sold. The Daily Express tries to meet demand and avoid running out of printed papers. On a randomly chosen Saturday, Ignoring the continuity correction: a. What is the probability that there are more than 35,000 casual reader sales?
b. What is the probability that there are less than 33,000 casual reader sales?
c. How many Saturday papers should the Daily Express print so that it has only a 5% likelihood of running out?

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