Mathematics: The hourly wages of a sample of 130 system analysts are given below. mean=90 mode= 103 median =104 range =18 variance= 729 Find the coefficient of variation. a. 0.30% b. 30% c. 8.1% d. 81%

The hourly wages of a sample of 130 system analysts

jybuccaneers2022

16.03.2022

Based on the information given the coefficient of variation is b. 30%.

Coefficient of variation

Using this formula

Coefficient of variation=√Variance/Mean

Let plug in the formula

Coefficient of variation=√729/90

Coefficient of variation=27/90

Coefficient of variation=0.3×100

Coefficient of variation=30%

Inconclusion the coefficient of variation is b. 30%.

Learn more about coefficient of variation here:link

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lamashermosa23

16.03.2022

b. 30%

Step-by-step explanation:

A measure of relative variability is known as coefficient of variation. It is the ratio of the standard deviation to the mean.

i.e. $CV=\dfrac{\sigma}{\mu}$

Given: mean = $\mu=90$

Variance = $\sigma^2 = 729$

$\sigma=\sqrt{729}=27$

Now, $CV=\dfrac{27}{90}=0.3$

in percent , $CV= 0.3\times100\%= 30\%$

Hence, correct option is b. 30%.

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elizabethwaller8104

03.08.2021

Write

Explanation:

Its primary function is to enact laws to provide for

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