Question 1 (8 Marks) The following data give the numbers of orders received for a sample of 30 items at the Time-saver Mail Order Company. 34 44 31 52 41 47 38 35 32 39 28 24 46 41 49 53 57 33 27 37 30 27 45 38 34 46 36 30 47 50 Using 6 classes of equal width, construct a grouped frequency distribution of the above data. Let 22 be the lower limit of the initial class. Question 2 (5 Marks) Calculate the median. Question 3 (6 Marks) Calculate the mid-70% range. Question 4 (11 Marks) Calculate the coefficient of variation and interpret the value obtained.