Question

a series has its mean as 15 and its standard deviation as 3, its coefficient of variation is.
1= 10
2= 20
3= 30
4= 40​

Answer 1

Answer:

2=20

Step-by-step explanation:

=> coefficient of variation =( standard deviation /mean )×100

=> (3/15) ×100

=> 20 , this is the required answer .

Thank you.

Answer 2

Answer:

Coefficient of variation is 20

Step-by-step explanation:

Given data

A series mean x = 15

and standard deviation = 3

here we need to find coefficient of variation

⇒ the formula for coefficient of variation is given by

 Coefficient of  Variation (c.v) = $\frac{S.D}{mean}$ × 100

here S.D is standard deviation of the data  

        coefficient of variation = $\frac{3}{15}( 100)$  

                                               = 0.2(100) = 20