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Question -

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 1.25 goals. Find which team may be considered more consistent?



Answer -

From the given data,

Let us make the tableof the given data and append other columns after calculations.

Number of goals scored xi

Number of matches fi

fixi

Xi2

fixi2

0

1

0

0

0

1

9

9

1

9

2

7

14

4

28

3

5

15

9

45

4

3

12

16

48

Total

25

50

130

Since C.V. of firm Bis greater

∴ Team A is moreconsistent.

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