Q. Kevin Horn is the national sales manager for national Textbooks Inc. He has a sales staff of 40 who visit college professors all over the United States (US). Every Saturday morning he requires his sales staff to send him a report. This report Comprises, among other thing, the number of professors visited during the earlier week. Below the listed ordered from minimum to maximum are the number of visits last week,

38 40 41 45 48 50 50 50 51 51 52 52 53 54 55 55 55 56 56 57
59 59 59 62 62 62 63 64 65 66 66 67 67 69 69 71 77 78 79 79

a. Conclude the median number of calls

b. Conclude the 1st also third quartiles

c. Conclude the 1st deciles also the ninth deciles.

d. Conclude the 33rd percentile