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…

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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…

Neil Jordan on Don’t Take The ‘Long-Covid’ Alzheimer’s Study SeriouslyFebruary 17, 2026
Thank you for the vivid disembowelment of the confidence intervals, which reminds me of my linear estimation statistics class of…
Cloudbuster on AI Is Driving Many Crazy: Our Latest PanicFebruary 17, 2026
When you think of the AI revolution, should it happen, think of "Privatize the profits, socialize the costs." The profits…
John Pate on AI Is Driving Many Crazy: Our Latest PanicFebruary 17, 2026
AI is actually Indians, that is to say in a call centre somewhere someone is monitoring every "autonomous" vehicle/robot/machine except…
C-Marie on AI Is Driving Many Crazy: Our Latest PanicFebruary 17, 2026
The One World Government and the One World Religion really are on their way!, God bless, C-Marie
Rara Avis on AI Is Driving Many Crazy: Our Latest PanicFebruary 16, 2026
Bill: I've got a friend who is enthralled by all the wonderful things AI can do. He is well-connected in…