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Determination of Significant Digits in a Number

The variance ...

Question

The variance of a data is 121.If the A.M is 11 then the C.V is

A

100%

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B

10%

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C

1%

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D

50%

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Solution

The correct option is A
100%

$C . V = \frac{σ}{μ} \times 100$
$= \frac{11}{11} \times 100$
$= 100$

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