Question 9 The average price of a college math textbook is $180 and the standard deviation is $27. Suppose that 43 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of ? I - N b. For the group of 43, find the probability that the average price is between $185 and $189. 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 YesO No Submit