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Given Sigma(i=1)^(20) ai=100, Sigma(i-1)...

Given `Sigma_(i=1)^(20) a_i=100, Sigma_(i-1)^(20) a_i^2=600, Sigma_(i-1)^(20) b_i=140, Sigma_(i-1)^(20)b_i^2=1000`, where `a_i,b_i` denotes length and weight of an observations. Then which is more varying ?

A

Length

B

Weight

C

Equal C.V.

D

None of these

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