Class – Page 7 – William M. Briggs

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…

Class Statistics

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…

Class Statistics

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…

Class Statistics

Free Data Science Class: Predictive Case Study 1, Part VIII

Review! We're continuing with the CGPA example. The data is on line, and of unknown origin, but good enough to use as an example. We will build a correlational model,…

Class Statistics

Free Data Science Class: Predictive Case Study 1, Part VII

Review! This is our last week of theory. Next week the practical side begins in earnest. However much fun that will be, and it will be a jolly time, this…

Class Statistics

Cliodynamics And The Lack Of A Hari Seldon

There will be no Hari Seldon. But there will be prophets. If there is no Seldon, there will be no psychohistory, the fictional astonishingly accurate mathematical science predicting gross human…

Class Statistics

Free Data Science Class: Predictive Case Study 1, Part VI

Review! This class is neither frequentist nor Bayesian nor machine learning in theory. It is pure probability, and unlike any other class available. And for the right price! Last time…

Class Statistics

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…

Brian (bulaoren) on Class 68: The Philosophy Of Models (Regression): The WRONG WayOctober 9, 2025
47 > 46
Lou on Class 68: The Philosophy Of Models (Regression): The WRONG WayOctober 9, 2025
68 > 67
Johnno on The Lancet’s New Push To Ban MeatOctober 9, 2025
A short extract from "Remarks to the Commonwealth Club" by Michael Crichton, San Francisco, September 15, 2003. "Today, one of…
Uncle Mike on The Lancet’s New Push To Ban MeatOctober 8, 2025
Cows don't cause "climate change" whatever that is. Cows don't add new carbon, they recycle it. Cows don't "transgress planetary…
Brian (bulaoren) on The Lancet’s New Push To Ban MeatOctober 8, 2025
OK, I will start calling Rob Reiner a vegetable head.