#### When Testing Parameters Might Make Sense

This example is derived from ongoing conversations with a colleague, and portions of this post (mathematified) might show up in a paper. The genesis of this example is from Ron…

#### Using P-Values To Diagnose “Trends” Is Invalid

Look at the picture, which is real data, but disguised to obscure its source. It is a physical measurement taken monthly by a recognized authority. The measurements are thought to…

#### Free Probability-Statistics Class: Predictive Case Study 1, Part XI

Review! We left off with comparing the standard, out-of-the-box linear regression with our multinomial predictive observable model. The great weaknesses of the regression were probability leakage (giving positive probability to…

#### Free Probability-Statistics Class: Predictive Case Study 1, Part X

Review! Last time we created four models of CGPA. Which is correct? They all are. Why? I should ask as a homework question, but I'll remind us here. Since all…

#### What Is The Probability Of COVFEFE?

From a tweet from Taleb, who informs us the following question is part of the Indian Statistical Institute examination. (5) Mr.Trump decides to post a random message on Facebook and…

#### How To Do Predictive Statistics: Part X: Survival Analysis

Query: now that I'm a video master, would people like videos of these lessons? I don't see how they'd help much, but who knows. Let me know below or via…

#### The Controversy Over Randomization And Balance In Clinical Trials

There was a paper a short while back, "Why all randomised controlled trials produce biased results", by Alexander Krauss, in the Annals of Medicine. Raised some academic eyebrows. Krauss says,…

#### Free Probability-Statistics Class: Predictive Case Study 1, Part IX

Review! Last time we successfully computed our model (8):     (8) Pr(CGPA = i | guesses of new measures, grading rules, old obs, model), where i = 0,...,5. The model…