The mean of `x-2a , x-a , x , x+a , x+2a` is:

The mean of the data x , x + a , x+ 2a , x + 3a , …., (2n +1 terms) is "_____" .

If the mean of 2x, 2x + 3, 2x + 5, 2x + 7, 2x + 10 is 11, the mean of the last three observation is

If the mean of x + 2, 2x + 3, 3x + 4 and 4x + 5 is x + 2, then find the value of x.

Find the mean of x, x+2, x+4, x+6, x+8

If the mean of observations x_1,\ x_2,\ ddot,\ x_n is x , then the mean of x_1+a ,\ x_2+a ,\ ,\ x_n+a is (a) a x (b) x -a (c) x +a (d) ( x )/a

If the arithmetic mean of x ,\ x+3,\ x+6,\ x+9, and x+12 is 10, the x= (a) 1 (b) 2 (c) 6 (d) 4

The mean of five observations x, x + 2, x + 4, x+6, x + 8 is m. What is the mean of the first three observations ?

If mean deviations about median of x, 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x is 30, then |x| equals:-

If x is the mean of x_1, x_2, ..... ,x_n , then for a ne0 , the mean of ax_1, ax_2, .... ,ax_n,(x_1)/a,(x_2)/a,....,(x_n)/a is