Question

Mean of the goals scored by Ronaldo and Messi for each year for the past 5 years is 48 and 50 respectively. Standard deviation for each of them is 6 and 4 respectively. Who is more consistent?

• A. Ronaldo
• B. Messi
• C. Both
• D. None of these

Answer 1

The correct option is B

Messi

We can say the player with less coefficient of variation is more consistent with his performance.

C.V(Ronaldo ) = $\frac{\sigma }{\overline{x}}\times 100=\frac{6}{48}\times 100=12.5$

C.V(Messi ) = $\frac{\sigma }{\overline{x}}\times 100=\frac{4}{50}\times 100=8$

You can clearly see that Ronaldo has more variance compared to Messi. So, Messi is more consistent.