Quote:
Originally Posted by MechanicalRandall
What is the unlabeled x-axis of that graph?
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There were ~187 samples in the largest data set. So I shifted all curves to put the middle at 100. By putting all mid-points at 100, it is easier to see how the mileage distributions fit within the distribution.
One reason for doing this instead of a traditional distribution curve (aka., a Gaussian curve) is the problem of small count samples. If we tried to do a distribution curve, the processing would distort the value to the point of not being decipherable.
Bob Wilson