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(2 + 3 + 4 + 5+ 6 + 8)/6 = 30 /6 = 5
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(2 â 5)^2 = (-3)^2= 9
(3 â 5)^2 = (-2)^2= 4
(4 â 5)^2 = (-1)^2= 0
(5 â 5)^2 = 0^2= 0
(6 â 5)^2 = 1^2= 1
(8 â 5)^2 = 3^2= 9
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(9 + 4 + 0 + 0+ 1 + 9)/6 = 24/6 = 4
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