Part A: General Number fx B C D E F G H Instructor mark out of 20 0 8 Tim Hortons in KPU Surrey has estimated that the number of donuts they sell per day follows a normal distribution with mean of 325 and standard deviation of 50 donuts. 10 11 12 13 a) What is the probability that they sell less than 250 donuts in one day? 14 15 16 b) If they decide to make 300 donuts in a day, what is the probability that they run out of donuts by the end of the day? 18 19 c) To make sure they remain competitive, how many donuts should they make in a day to make sure thay have 20 enough in at least 95% of the days? Fractional numbers are OK. 21 22 23 24 d) How many donuts (symmetrically distributed around the mean) will they sell with 70% probabilty? Fractional 25 Lower numbers are OK. 26 27 28 Group Member Names 01 Ready Accessibility: Investigate 1C Light rain/snow Q Search ? @ # s % Upper