#### Question

If `Σdi^2 = 25`, n = 6 find rank correlation coefficient where di, is the difference between the ranks of ith values.

#### Solution

Here given `∑di^2=25`

n=6

The rank correlation coefficient is given by

`r=1-(6∑di^2)/(n(n^2-1))`

=`1(-6xx25)/(6(36-1))`

=`1- 150/(6xx35)`

= `1 -5/7`

`r=2/7`

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#### APPEARS IN

Solution If σ D I 2 = 25 , N = 6 Find Rank Correlation Coefficient Where Di, is the Difference Between the Ranks of Ith Values. Concept: Statistics - Bivariate Frequency Distribution.