The sum and sum of squares corresponding to length x (in cm )and weight y
(in gm ) of 50 plant products are given below: 
= 212 , 
= 902.8, 
= 261, 
= 1457.6 which is more varying , the length or weight ?
The sum and sum of squares corresponding to length x (in cm )and weight y
(in gm ) of 50 plant products are given below:= 212 , = 902.8, = 261, = 1457.6 which is more varying , the length or weight ?
(in gm ) of 50 plant products are given below:
= 212 , = 902.8, = 261, = 1457.6 which is more varying , the length or weight ?
n =10
= 212 , 
= 902.8 , 
= 261 , 
= 1457.6
σ2length = 
= 
-
= 18.056 – 17.9776 = 1.0790
σ2weigth = 
= 
-
= 29.152 – 27.2484 = 1.9036.
As variance for weights is more than that for length , therefore weights are more varying than length.
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