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

Explanation

No. of observations;`5`
Sum of observations`=x+x+2+x+4+x+6+x+8=5x+20=5(x+4)`
Mean=Sum of observations/No. of observations
`=(5(x+4))/5`
`therefore` Mean`=x+4`