a)  A random sample of 15 bank customers is selected to see how long (in minutes) they waited in line during the lunch hour, the results are as follows ,,   find the following

A) mean

b) median

c) mode 

d)  range 

e) mean deviation

f) first and third Quartile 

g) semi inter quartile

  h)  standard deviation 

show all necessary workings

Scanned by CamScanner Scanned by CamScanner

"Get 15% discount on your first 3 orders with us"
Use the following coupon

Order Now