4. The following is the record of goals scored by team A in a football session:
|No. of goals scored||0||1||2||3||4|
|No. of matches||1||9||7||5||3|
For the team B, mean number of goals scored per match was 2 with a standard deviation goals. Find which team may be considered more consistent?
No. of goals
=N = 25
For Team A,
We know, Variance,
We know, Standard Deviation =
For Team B,
Mean = 2
Standard deviation, = 1.25
Since C.V. of firm B is more than C.V. of A.
Therefore, Team A is more consistent.