Re: Inspector Nectar
Amazon regularly lies with statistics.
They talk about "averages", and there at least three that can be used, all simple and each giving different results with their "long tail".
This is the one that most people use if they have to give a figure. 100 samples, add the numbers together, and divide by the number of samples. But a few high figures, such as a millionaire when everyone else is on minimum wage, will make that average useless. There are authors who sell thousands of books for the Kindle. Are you that good?
When the samples are arranged in order, low to high, this is the one in the middle. This is closer to our idea of "average". That one-millionaire problem obviously doesn't affect the figure.
You split the samples into groups, like that age chart in the article, and the mode is the biggest group. You have to be careful about it, because changing the size of the group can shift it. The mode for those Kindle sales is effectively bugger all. That's what the "long tail" means.
They're teaching this in the schools now.