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.