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The sum and squares corresponding to len...

The sum and squares corresponding to length x(in cm) and y(in gm) of 50 plant products are given below:
`sum_(i=1)^50 x_i=212,sum_(i=1)^50 x_i^2=902.8`
`sum_(i=1)^50 y_i=261,sum_(i=1)^50 y_i^2=1457.6`
which is more varying , the length or weight?

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