Answers

2015-01-03T16:15:21+05:30
The mean of x,x+2,x+4,x+6.x+8 is 5x+20/5=x+4
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no,i think its the mode-not the mean
no no it is the mean
srry,i meant median,because mean=sum of all obs./total no.of obs.,but what you wrote is the middle value
So sorry
I was the one went wrong