#### Question

Coefficient of rank correlation between x and y is 0.5 and `sumd_i^2`= 42. Assuming that no ranks are repeated, find the number of pairs of observations.

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Solution for question: Coefficient of rank correlation between x and y is 0.5 and ∑d2i= 42. Assuming that no ranks are repeated, find the number of pairs of observations. concept: Rank Correlation. For the courses HSC Commerce, HSC Commerce (Marketing and Salesmanship)