Disclaimer: This page neds javascript to render LaTeX and Bokeh content. I few days ago I was reading a Spanish newspaper and one of the headlines was how the government had acquired some tests with a sensitivity of 30% [1]. The article indicated that this was bad. But how bad? I wondered. What does it mean exactly? In this entry I will explain the following terms: Sensitivity, also known as true positive rate, the recall, or probability of detection.

A few weeks ago I discovered somewhat serendipitously the book “Measurement” by Paul Lockhart. Even though I haven’t finished it yet I want to share some of my thoughts on this excellent book. The Joy of Mathematics If you’ve ever taken a maths class (high school or undergrad level), the way it’s usually thought is “Here is this theorem, here is the proof on why it’s true. Here you have some exercises to apply this new theorem”.