Question

Scores in a game of bowling range from 0 to 300. In some​ way, these scores represent how many pins you knocked down​ (there are​ bonuses). The higher the score the better.   Suppose you have a bowling team and you are looking for a new player. Two friends of yours decide to​ "try out" for the team. You all go down to the bowling alley and bowl three games each.   Friend​ A's scores​ are: ​ 100, 185, 300 Friend​ B's scores​ are: ​ 180, 185, 220 Assuming you like both friends equally and use only these bowling scores to make your​ decision, who do you choose and​ why?

Answer 1

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We can use coefficient of variation (C.V.) to decide who is more consistent.

C.V. = ( Standard Deviation / Mean ) * 100%

Those data which has a lower C.V. is more consistent.