The mean of (54,822)^2 and (54,824)^2 =
Pick one
A) (54,821)^2  B) (54,821.5)^2  C) (54,820.5)^2  D) (54,823)^2 + 1  E) (54,821)^2 – 1
54822^2 = (54823-1)^2 = 54823^2 + 1^2 - 2*54823*1   54824^2 = (54823+1)^2 = 54823^2 +1^2 + 2*54821*1   Taking the average of above 2 , we get (54823)^2 +1   hence the answer is (54,823)^2 + 1
<result>D</result>
The mean of (54,822)^2 and (54,824)^2 =