# For the study purpose, the mean of the observations is 148 gm and standard deviation is 17.4 gm. Approximately, the coefficient of variation equals to

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For the study purpose, the mean of the observations is 148 gm and standard deviation is 17.4 gm. Approximately, the coefficient of variation equals to:
1. 0.11
2. 0.14
3. 0.12
4. 0.13

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Correct Answer - Option 3 : 0.12

Concept:

Coefficient of variation = $\rm \frac{\sigma _{x}}{\bar{x}}$

Where,

$\rm \sigma _{x}$ = Standard Deviation

$\rm \bar{x}$ = Mean of the observations

Calculation:

Coefficient of variation = $\rm \frac{17.4}{148}$

∴ Coefficient of variation is  0.12