Q21 of 23 Page 15

The sum and sum of squares corresponding to length x (in cm) and weight y (in gm) of 50 plant products are given below:


Which is more varying, the length or weight?

For length x:

Mean,



=


Standard deviation σ = √variance= √0.0784=0.28



For Weight Y


Mean,


Variance



Standard deviation (



Since C.V.y C.V. x


⇒ weight is more varying.

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