1. The problem statement, all variables and given/known data In an early set of experiments, Milikan observed that the following measure charges, among others, appeared at different times on a single oil drop. What value of elementary charge can be deduced from these data? 1) 6.563 x 10^-19 C 2) 8.204 x 10^-19 C 3) 11.50 x 10^-19 C 4) 13.13 x 10^-19 C 5) 16.48 x 10^-19 C 6) 18.08 x 10^-19 C 7) 19.71 x 10^-19 C 8) 22.89 x 10^-19 C 9) 26.13 x 10^-19 C 2. Relevant equations I have no idea. :( Doing this graphically is NOT an option. My answer needs to be 5 significant figures. 3. The attempt at a solution I subtract each of the answers in the manner... B-A, C-B and so on. From this, I get two distinct sets of numbers. I take the average of each set of data and get 1.62525 and 3.2665.Then I divide the 3.2665 by 1.62525 to get approximately 2. Then I divide 3.2665 by 2 and get 1.63325. . . I have no idea why that works!!! What am I doing when I do that? It was explained to me by a friend, but I don't understand why that works or what that is doing. . .