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Understanding weighted averages
16 August 2014

One of the first warnings an aspiring analyst hears is, "never take an average of an average". The reason for this warning may not be intuitive, but it's important to understand why it's generally a bad thing to average a bunch of averages.

In today's post, I'll attempt to explain the problems with using simple averages and how Weighted Averages can help you avoid inaccurate conclusions about your data.

Full article: Understanding weighted averages