If the standard deviation of the spot speed of vehicles in a highway is 8.8 km/h and the mean speed of the vehicles is 33 km/h, the coefficient of variation in speed is

0.1517

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0.1867

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0.2666

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0.3646

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Solution

The correct option is C 0.2666
Coeff. of variation
$= \frac{σ}{μ} = \frac{8.8 k m p h}{33 k m p h} = 0.2666$

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If the standard deviation of the spot speed of vehicles in a highway is 8.8 km/h and the mean speed of the vehicles is 33 km/h, the coefficient of variation in speed is

The correct option is C 0.2666Coeff. of variation =σμ=8.8 kmph33 kmph=0.2666

The correct option is C 0.2666
Coeff. of variation
$= \frac{σ}{μ} = \frac{8.8 k m p h}{33 k m p h} = 0.2666$