Question

Rank correlation is useful where____________.

• A. we place things in an order of merit
• B. the number of variables is more than 30
• C. there is a need to calculate the co-efficient of frequency distribution
• D. none of the above

Answer 1

The correct option is A we place things in an order of merit

Rank correlation technique measures the strength and direction between two variables by providing suitable ranks to the concerned variables, e.g. marks of students in a class can be easily ranked.