If the mean of the 5 observation is x,x+2,x+4,x+6,x+8 is 11. Find the mean of five observation

If the mean of the 5 observation is x,x+2,x+4,x+6,x+8 is 11. Find the

1.	If the mean of the 5 observation is x,x+2,x+4,x+6,x+8 is 11. Find the mean of five observation
Answer» given , observations x, x + 2, x + 4, x + 6 and x + 8.given , mean = 11.\xa0Mean of given observations =\xa0{tex}\\frac{\\text{Sum of given observations}}{\\text{Total number of observations}}{/tex}{tex}\\therefore 11 = \\frac { x + ( x + 2 ) + ( x + 4 ) + ( x + 6 ) + ( x + 8 ) } { 5 }{/tex}{tex}\\Rightarrow 55 = 5x + 20{/tex}{tex}\\Rightarrow 5x = 55 - 20{/tex}{tex}\\Rightarrow 5x = 35{/tex}{tex}\\Rightarrow x = 7{/tex}