Question
Download Solution PDFSpearman's rank correlation coefficient is given by _____________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation
The spearman's rank correlation is denotted by ρ
⇒ ρ = 1 - 6∑d2/n(n2 - 1)
where as,
d = difference between the ranks of paired items of X and Y variables
∑d = total of squares of rank differences
n = number of pairs if items
Important Points
The method of ascertaining the coefficient of correlation by ranks was discovered by spearman. This method is based on the ranks of the variables
This method is applicable only to individual observations
In it biggest item gets first rank and so on.
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