3.32 A random sample of receipts from 20 customers from Dupo Dollar Store yields the following amounts (dollars). Convert the data to a grouped frequency distribution with class widths of $5 starting at 0. 21.2 5.30 8.48 12.72 10.60 14.84 5.30 1.06 7.42 8.48 11.66 4.24 4.24 10.60 6.36 10.60 3.21 5.30 16.96 10.60 a. Calculate the average receipt? b. Calculate the standard deviation of the receipts. c. Calculate the median receipt. d. What is the value of Q? e. What is the value of Q? Shom