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…

hudbwu on Math Is Epistemic Violence, Says Lady AcademicJune 20, 2026
We they're certainly re-inventing. Promises kept, I guess. Also, I can't escape thinking this is what the mice and rats…
hudbwu on The Ultimate IQ Test: Guessing the Author’s Mind and Escaping the Infinity of AnswersJune 20, 2026
ObvIOusLy, the correct formula for the triangles at the start is (upper_left + upper_right) * upper_left , which gives us…
Andras Kuthi on Truly Random Numbers Found?June 19, 2026
Contemplate that Epstein won the New Mexico lottery...so much for randomly generated numbers.
Rich on Math Is Epistemic Violence, Says Lady AcademicJune 18, 2026
Perhaps she and her friends would accept being paid according to the indigenous mathematics of crows who can, apparently, count…
Cary D Cotterman on Math Is Epistemic Violence, Says Lady AcademicJune 17, 2026
Lunatics like this Kather are well-paid and get great benefits for putting out hooey like that. People pay a lot…