*M*= 4. One person with a score of X =16 is added to the sample,*

n = 11

Mean , M = 4

X = 16

Mean =

EX

n

= )

EX = Mean . 0= 4x 11= 44

One

person with a score of 16 is added to the sample

. New sum of the sample is

EX = 44+ 16= 60

The new sample size, n= 1141=…Statistics and Probability