Question

2. The standard deviation and coefficient of variation of a data are 1.2 and 25.6
respectively. Find the value of mean?​

Answer 1

Answer:

4.69

Step-by-step explanation:

c.v=S .D/mean.;25.6=1.2/mean.we got answer 4.69

Answer 2

Mean = 4.6875

Step-by-step explanation:

We are given that the standard deviation and coefficient of variation of a data are 1.2 and 25.6  respectively.

And we have to find the mean of the data.

Firstly, Coefficient of variation formula is given by;

    Coefficient of Variation (C.V.) = $\frac{\text{Standard Deviation}}{\text{Mean}} \times 100$

In question we are provided with C.V. = 25.6 and Standard deviation of data = 1.2

So,        C.V.  =  $\frac{\text{Standard Deviation}}{\text{Mean}} \times 100$

            25.6  =  $\frac{1.2}{\text{Mean}} \times 100$

            Mean =  $\frac{1.2}{25.6} \times 100$

                       = $\frac{1200}{256}$ = 4.6875

Therefore, the value of mean is 4.6875.