I did a survey a couple months back, and one of the questions required a range of numbers. I may have discovered my own formula for how to calculate the mean of a range of numbers, but I don't know where to start on proving it, and also, I'm not sure if there is an easier way to do this or not, but I haven't been able to find out. Also, is it important enough to work on publishing it. I don't think it is at all, but it can't hurt to ask.

$r_n$ corresponds to each range, where $r_1$ is the minimum range and $r_n$ is the maximum

$s_{r_n}$ equals the amount of responses for a given range $r_n$

$w_n$ corresponds to the weight of each $r_n$, incrementally increasing by $1$

$w_\mu$ equals the mean weight of all the ranges

$\lceil r_\mu \rceil$ and $\lfloor r_\mu \rfloor$ are the maximum and minimum, respectively, of the range that corresponds to $w_\mu$

$\mu$ equals the mean of the entire range


$$\lfloor r_\mu \rfloor + [(w_\mu-\lfloor w_\mu \rfloor) (\lceil r_\mu \rceil-\lfloor r_\mu \rfloor)]=\mu$$

Anyway, that's the whole thing. It's kinda in depth, but I'm pretty sure it works. I just have no idea how to prove it, and I doubt that it is even significant enough to attempt publishing or making known.


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