Coefficient of variation = `(………….)/("Mean") xx 100 `

what is variation?

Coefficient of variation of two distributions are 60 and 70 their standard deviations are 21 and 16, respectively . What are their arithmetic means.

Coefficient of variation of two distributions are 50 and 60, and their arithmetic means are 30 and 25 respectively. Difference of their standard deviation is ……

Statement-1 : For any collision, coefficient of restitution (e0 lies between 0 and 1. Statement-2 : This is because no collision may be 100% elastic or 100% inelastic.

The value of coefficient of volume expansion of glycerin is 5 xx 10^(-4) K^(-1) . The fractional change in the density of glycerin for a rise of 40^@ C in its temperature is _____

A non-isotropic solid metal cube has coefficient of linear expansion as 5 xx 10^(-5)//""^(@)C along the x-axis and 5 xx 10^(-6)//""^(@)C along y-axis and z-axis. If the coefficient of volumetric expansion of the solid is n xx 10^(-6)//""^(@)C then the value of n is....

The coefficient of volume expansion of glycerine is 49 xx 10^(-5) K^(-1) . What is the fractional change in its density for a 30^(@) C rise in temperature ?

Acceleration of block A varies with time as shown in figure the value of coefficient of kinetic friction between block A and B is