Pocket allowance of 10 students is Rs. 15,20,30,22,25,18,40,50,55 and 65. Find out the average pocket allowance.

Explanation

`{:("Pocket Allowance(R.)"),(" "(X)),(" "15),(" "20),(" "30),(" "22),(" "25),(" "18),(" "40),(" "50),(" "55),(" "65),(sum X=340):}`
`barX=(sumX)/N=(X_(1)+X_(2)+...+X_(10))/10=340/10=34`
Average pocket allowance of the 10 students = Rs. 34.