By special reader request, a quick discussion of averages, since I usually whiz past them pretty quickly. If your school-teachers were on-the-ball, you’ve probably heard all of this before, but a short refresher is always nice for those of us that don’t work with them routinely – or if you’re trying to tell how badly a political candidate might be lying to you to score your vote.

There are actually three things called an ‘average’. They are the mean, the median and the mode.

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