Population estimates: one sample standard errors and confidence intervals

Often we calculate point estimates for a population based on a sample of data (e.g. the mean). How confident should we be in those estimates? Well, one quantifiable source of...

Descriptive statistics:
Python guide (NumPy/Pandas)

Descriptive statistics might seem simple, but they are a daily essential for analysts and data scientists. They allow us to summarise data sets quickly with just a couple of numbers,...