Calculating Variance in Python - Explained
You have a list of numbers and you want to calculate its variance. Here are the methods to do that in Python.
statistics
A/B Testing for Practical Significance
When doing statistical hypothesis testing, the math behind it gives us the toolset to determine the statistical significance of our observations. But if we're doing a two-sample test on a simple hypothesis, rejecting it won't tell us anything about the magnitude of the difference.