Question

Goals scored by two teams in a football session are as follows. Which team is more consistent in its game?

No. of goals scored in a football match	No. of football matches played
	Team A	Team B
0	15	20
1	10	10
2	7	5
3	5	4
4	3	2
5	2	1

Answer 1

To determine which team plays consistent game, we will find the coefficient of variation of goals scored in football matches by team A and team B.

Standard deviation:

Coefficient of variation:
Coefficient of variation = \(\frac{s}{x¯}\) × 100
= \(\frac{1.33}{1.07}\) × 100
= 1.243 × 100
= 124.3%

The coefficient of variation of goals scored in football matches by team A is 102.07 % is less that of team B, i.e., 124.3%. Hence, the game of team A is more consistant.