# Average delta value of a sequence of $N$ $8$-digit numbers

Given a sequence of $N$ $8$-digit numbers, how to calculate the average delta value, thanks.

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By "delta value" do you mean the difference between each of the N numbers? –  infinitesimal simplicio Nov 2 '12 at 9:00
@skullpatrol yes –  Foredoomed Nov 2 '12 at 9:19
Take the sum of those numbers and divide it by the number of numbers. –  infinitesimal simplicio Nov 2 '12 at 9:51
That is: add up the delta-values, and divide by how many delta-values you are using; to get the average-delta-value. –  infinitesimal simplicio Nov 3 '12 at 12:32

Divide the difference between the last element of the sequence and the first by $N-1$.
Definitely by $N-1$. Edited to correct. –  Dan Brumleve Nov 2 '12 at 9:54