The coefficient of variation is defined as `sigma//overset-x` that is the standard deviation divided by the mean value. Find the coefficient of variation c.v. for each of the following set of observations.
2,3,4,2,5,7,8,9

The coefficient of variation is defined as sigma//overset-x that is the standard deviation divided by the mean value. Find the coefficient of variation c.v. for each of the following set of observations. 5,7,9,10,7,5,8,9,3

The coefficient of variation is defined as sigma//overset-x that is the standard deviation divided by the mean value. Find the coefficient of variation c.v. for each of the following set of observations. 3,3,3,4,4,4,5,5,5

Evaluate the following determinants: [[1,2,3],[3,5,7],[8,14,20]]

Evaluate the following determinants. [[-6,0,0],[3,-5,7],[2,8,11]]

Let x_1,x_2…x_n be a set of observations with mean value 0 and variance sigma_x^2 and y_1,y_2,…,y_m be another set of observations with mean value 0 and variance… Find the mean value and variance of the set of observations x_1,x_2,,,,x_n, y_1,y_2,…y_m combined.

Evaluate the following determinants |{:(1,2,3),(3,5,7),(8,14,20):}|

Using elementary transformation , find the inverse of the following matrices . [{:(1,2,3),(2,5,7),(-2,-4,5):}]

Find the equation of the parabola in each of the following cases: the focus at (-2,3)and the directrix 3x+4y-2=0.

Find the value/values of x for which the following are not defined. (x^2 - 4)// (x-2)