How Do I Get The Coefficient Of Variation? Standard Deviation Divided By Mean X 100, Need An Example Problem. Ie A Set Of 5 Numbers

goals of a team are as follow:
number of goals(x)                  number of matches(f).
0                                                                      17
1                                                                      9
2                                                                      6
3                                                                      5
4                                                                      3
Calculate the coefficient of variation.
Mean=[sum of fx]/n=48/40=1.2
Standard deviation=[{sum of fx2}/n  -{(sum of fx)/n}2]1/2
S=[126/40 –(48/40)2]1/2
S=1.308
Coefficient of variation=s/mean *100= 1.308/1.2 *100=109%

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For another worked-out example, see the answer to your other question.

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