For the given data `6,10,7,13,a,12,b,12` if the mean is 9 , variance is is `37/4` then find the value of `(a-b)^2`

Let the five observations are 1,3,8,x,y and their mean is 5 and variance is 9.2 find the value of (x)/(y) (a) 9:4 (b) 6:7(c)5:8(d) none

If a,b,7,10,11,15, mean=10, variance= 20/3 and variance is then find value of a and b

If the mean and variance of the following data: 6, 10, 7, 13, a, 12, b, 12 are 9 and (37)/(4) respectively, then (a-b)^(2) is equal to

If the arithmetic mean of 7,5,13,x and 9 is 10, then the value of x is 10 b) 12(c)14(d)16

The standard deviation of data 6,5,9,13,12,8 and 10 is

The mode of the unimodal data 7 , 8, 9, 8, 9, 10, 9 ,10, 11 , 10, 11, 12, and xis 10. Find the value of x.

Find the median of the given data 11,12,13,14,5,7,9,6,4,1