- #1
werson9339
- 5
- 0
Homework Statement
A bag contains a large number of coins comprises of 1 cent and 5 cents coins in the ration of 1:3
find the man and variance of the values of coins..
i have attached the sample ans here. i don't understand why the value of '2' is used?? why not '5' ...for me '5' represent 5 cents.