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…

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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,…

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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…

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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…

CorkyAgain on The Equality ParadoxJuly 10, 2026
Somehow I'd missed that story about Schumer's grilling gaffe. Aside from not lighting the fire or putting cheese on a…
John Pate on The Equality ParadoxJuly 9, 2026
Maybe it wasn't considered safe for Schumer to be near an open flame, having no familiarity with the ordinary tasks…
Fubsy on My Horrible Interaction With AIJuly 9, 2026
Lol, I remember "Iron Eyes Cody," the spaghetti Indian!
Rudolph Harrier on My Horrible Interaction With AIJuly 9, 2026
I've also experienced that thing where it claims to not be able to do something it just did. I see…
Rudolph Harrier on My Horrible Interaction With AIJuly 9, 2026
A couple of things I have noticed about how LLMs have developed in the last year or so: 1.) Somehow…