In the following, the age data (years) of 23 executives are given from a survey XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX XXXXXXXXXXFrom these data, calculate: A) quartiles (top, bottom, middle) B) deciles (to...

In the following, the age data (years) of 23 executives are given from a survey. 45 45 46 41 44 44 42 44 48 42 44 45 45 46 43 44 42 44 45 45 44 42 43. From these data, calculate:

A) quartiles (top, bottom, middle)
B) deciles (to : 2, 6 and 8)
C) percentile (to : 15, 30, 45, 65, 85, and 95)
D) standard deviation
E) coefficient of variation! Then interpret.