Question

# If the mean of 5 observations x,x+2,x+4,x+6 and x+8 is 11, find the value of x.

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Solution

## The given observations are x,x+2,x+4,x+6 and x+8.Mean of the given observation =Sum of total observationNumber of observatiox+(x+2)+(x+4)+(x+6)+(x+8)5=11 [Mean is given as 11]⇒5x+20=55⇒5x=35⇒x=7

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