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The sum of 10 values is 100 and the sum ...

The sum of 10 values is 100 and the sum of their squares is 1,090. Find the Coefficient of Variation.

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[ Given : `sumX`=100, `sumX^(2)`=1,090, N=10
`barX=(sumX)/(N)=(100)/(10)=10`
`sigma=sqrt((sumX^(2))/(N)-((sumX)/(N))^(2))`
`=sqrt((1,090)/(10)-((100)/(10))^(2))`
`=sqrt(109-100)=sqrt(9)=3`
`CV=(sigma)/(barX)xx100`
`=(3)/(10)xx100=30`
Coefficient of variation=30.]
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