find the cofficient of varience of the data 12, 15, 25 ,20, 18.
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Answer:
Coefficient of Variation = 27.5%
Step-by-step explanation:
We are given the following data;
X X - X bar
12 12 - 18 = -6 36
15 15 - 18 = -3 9
25 25 - 18 = 7 49
20 20 - 18 = 2 4
18 18 - 18 = 0 0
Total = 98
Mean of data, X bar = = = 18
Standard deviation, S.D. = = = 4.95
Coefficient of Variation formula =
= = 27.5%
Therefore, coefficient of variation of the data is 27.5%
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