HSC Commerce (Marketing and Salesmanship) 12th Board ExamMaharashtra State Board
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If σ D I 2 = 25 , N = 6 Find Rank Correlation Coefficient Where Di, is the Difference Between the Ranks of Ith Values. - HSC Commerce (Marketing and Salesmanship) 12th Board Exam - Mathematics and Statistics

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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`

  Is there an error in this question or solution?

APPEARS IN

 2017-2018 (March) (with solutions)
Question 4.3 | 2.00 marks
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.
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