Q. 264.5( 2 Votes )

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 ?



Answer :


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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