1.

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

Answer»

Pocket Allowance(R.) 

(X) 

15

20

30

22

25

18

40

50

55

65

\(\sum X = 340\)

\(\overline X = \frac{\sum X}N= \frac{X_1 + X_2 + ....+ X_{10}}{10} = \frac{340}{10} = 34\)

Average pocket allowance of the 10 students = Rs. 34.



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