Question

Coefficient of correlation between observations(1, 6),(2, 5),(3, 4), (4, 3), (5, 2), (6, 1) is

• A. 1
• B. – 1
• C. 0
• D. None of these

Answer 1

Answer: (B)

– 1

Answer 2

Since there is a linear relationship between x and y, i.e. $x + y = 7$

∴ Coefficient of correlation = – 1.