C.V. of a data is 69%, S.D. is 15.6, then find its mean.

S.D. of a data is 21.2, mean is 36.6, then find its C.V.

If the coefficient of variation of a collection of data is 57 and its standard deviation is 6.84 , then find the mean.

If the co-efficient of variation and S.D of a data are 35% and 7.7 respectively, then the mean is ___.

The S.D of a data is 2.8, if 5 is added to all the data values then the new S.D is ____.

If the mean of the following data is 20.2 , then find the value of p.

If the standard deviation of a data is 3.6 and each value of the data is divided by 3, then find the new variance and new standard deviation.

If the mean and coefficient of variation of a data are 15 and 48 respectively, then find the value of standard deviation.

The standard deviation and mean of a data are 6.5 and 12.5 respectively. Find the coefficient of variation.

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