HSC Commerce 12th Board ExamMaharashtra State Board
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# Solution for 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 12th Board Exam - Mathematics and Statistics

ConceptStatistics Bivariate Frequency Distribution

#### 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

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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