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…

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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 The Consent FallacyJanuary 7, 2026
A few days ago, I watched. a re-run of "Leave it to Beaver". In it, Beaver felt quite humiliated when…
Uncle Mike on On Laws Banning Hacking Women’s Genitals & Imposing BeliefsJanuary 7, 2026
Dear C-Marie, No. H.R. 3492 is specifically about child mutilations and related atrocities. Abortion is a different issue, as are…
BobH on Canada Invents New Euphemism For Doctor KillingsJanuary 6, 2026
Thank you C-Marie. Thank you for the reminders of the greatness of our Lord and Savior. I will share these…
JerryM on Register Your Predictions For 2026!January 6, 2026
1. Trump's health take turn for worse and he must resign and JD takes over. 2. Ukraine SMO finally ends…
Keith on Register Your Predictions For 2026!January 6, 2026
1. Trump does not finish the year as president, likely through resignation but possibly because of health reasons. 2. Kansas…