10. A recent review of a compact disc distributor's product line is summarized as follows: Selling Price ($) Number of Titles 0 to under 5 53 5 to under 10 174 10 to under 15 231 15 to under 20 1568 20 to under 25 1328 25 to under 30 242 30 to under 35 93 35 to under 40 11 Calculate the following (be sure to show your work): [3] a) mean [4] b) median [2] c) range [5] d) interquartile range [4] e) standard deviation