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The average of n numbers x(1), x(2), ……....

The average of n numbers `x_(1), x_(2), ……. X_(n)` is `bar(x)`. Then the value of `sum_(i=1)^(n) (x_(1) - bar(x))` is equal to

A

n

B

0

C

`nbar(x)`

D

x

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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-AVERAGE-QUESTIONS
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  3. The average of n numbers x(1), x(2), ……. X(n) is bar(x). Then the valu...

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  5. If the average of m numbers is n^(2) and that of n numbers is m^(2) ....

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  7. The average of 8 numbers is 20. The average of first tow numbers is 15...

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  8. The average of 8 readings is 24.3. Out of which the average of first t...

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  9. A student finds the average of ten 2-digit numbers. While copying numb...

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  10. A student calculated the average of 10, three digit number. But due to...

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  11. In an exam, the average marks obtained by the students was found to be...

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  12. In an examination, the average of marks was found to be 50. For deduct...

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  13. Find average 1, 2,2 3,3,3 4,4,4,4, ……… 7,7,7,7,7,7,7.

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  14. Find the average of 1^(3) + 2^(3) + 3^(3) + ……. 100^(3)

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  15. Average of 5 consecutive number is 23. Find the largest number

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  16. Average of 6 consecutive odd number is 40. Find the largest number.

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  17. If the average of 116 consecutive even number is 201. Find the sum o...

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  18. If the average of 7 consecutive even number is 44. Find the differen...

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  19. If the average of 17 consecutive even number is 143. Find the differen...

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  20. The weight of 5 members is measured in sequence and each time the ave...

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