The average price of a college math textbook is $169 and the standard deviation is $24. Suppose that 40 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of C? C - N( b. For the group of 40, find the probability that the average price is between $163 and $169. C. Find the third quartile for the average textbook price for this sample size. $ (round to the nearest cent) d. For part b), is the assumption that the distribution is normal necessary? O Yes No