coefficient of variation of data 1 3 5 7 9 is
Answers
Given : data 1 3 5 7 9
To Find : coefficient of variation of data
Solution:
1 3 5 7 9
Mean = (1 + 3 +5 + 7 + 9)/5
= 25/5
= 5
xi d = xi - Mean(5) d²
1 -4 16
3 -2 4
5 0 0
7 2 4
9 4 16
Sum 0 40
∑d² = 40
σ = √ (∑d²/n)
=> σ = √40/5
=> σ = √8
=> σ = 2.828 4
coefficient of variation = (σ / Mean ) *100
= ( 2.828 4/20)*100
= 14.142
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