William M. Briggs

What Probably Isn’t: Heat Waves and Nine Feet Tall Men: Part I

Probability is screwy, and we statisticians do a horrible, rotten job of teaching it. The first thing students learn in normal statistics classes is about "measures of central tendency" or…

Statistics

Men Nine Feet Tall And Bayes Theorem

The OFloinn put up a most readable and recommended essay When is Weather Really "Climate"? and in one of the comments a reader named Gyan in part said: Many economists…

Culture Statistics

The Decline And Increase Of Mainstream Religions In The USA: With Pictures!

The Episcopals, like many other old guard protesting religions, are in trouble. Jay Akasie tells us that at this year's annual conclave, the Episcopalian leadership had their most serious discussions…

Philosophy Statistics

Certainty & Uncertainty: Logical Probability & Statistics

Since we have spent the weekend with these matters, I thought it appropriate to include the first part of the Introduction to the new book I've been working on. It…

Philosophy Statistics

More On The 1 in 1.6 Million Heat Wave Chance

Yesterday we looked at NCDC's claim that the 13-month stretch of "above-normal" temperatures had only a 1 in 1.6 million chance of occurring. Let's today clarify the criticism. The NCDC…

Philosophy Statistics

Chance Of Heat Wave Only 1 in 1.6 Million? Or, Probability Gone Wrong

My dad took a swing with his nine-iron and the wiffle simulacrum of a golf ball took flight, arched upwards, spun left and, without bouncing, landed atop my favorite blade…

Fun Statistics

How Good Are You At Making Sports Predictions?

I'm traveling today so I thought I'd remind us of ShortBurst sports, Edgehogs as was. Make picks in all major sports, even the God-help-us Olympics, and track your prognosticatory prowess.…

Statistics

Observational Bayes > Parametric Bayes > Hypothesis Testing < Looking

This is a completion of the post I started two weeks ago which shows that "predictive" or "observational" Bayes is better than classical, parametric Bayes, which is far superior to…

Phil R on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
...and I saw 5 or 25 in the figure. The division answer never occurred to me. Got all the rest…
Phil R on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
If someone asks a question that is conditional on some evidence or rule that they conveniently (or purposely) leave out,…
McChuck on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
The answer for the pictured question is obviously '1', as the slot already has a '1' in it, which has…
Briggs on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
Mark, That's exactly it.
Mark on Test Your IQ With These Puzzles! (Not So Easy!)July 1, 2025
Wittgenstein gave some examples like this in his Remarks on the Foundation of Mathematics, a book I had no business…

William M. Briggs

Test Your IQ With These Puzzles! (Not So Easy!)

How Can You Tell If You Have ESP?

Class 56: The Best Model!

Sabine Hossenfelder’s Free Will Folly & The Deadly Sin Of Reification

England’s Mandatory Suicide & Women

On The Probability Of God

Class 55: Models Vs Reality

AI & Chess Both Produce Pre-Coded Output

The Hubris Of Experts: NIH Edition

The Mathematics Of Conspiracy Theories. Part 1: Black Eye Club Example

Class 54: Exchangeability & Parameters

Over-Certainty Of Polygenic Scores

AI & The Dilemma Of Technology

What Are The Chances Thomas Jefferson & John Adams Died On The Fourth of July, 1826?

Class 53: Laplace Was Right!

Even The Woke Say Science Is Petering Out

Expert Nathan Confas: Experts Know Best

Science Claims 7% Of Adults Saw A Mass Shooting

Class 52: The Origin Of Parameters

IQ Is Not Intelligence

What Are The Chances…George Wendt Dies On Same Day Cheers Ended 32 Years Before?

Test Your IQ With These Puzzles! (Not So Easy!)

How Can You Tell If You Have ESP?

What Probably Isn’t: Heat Waves and Nine Feet Tall Men: Part I

Men Nine Feet Tall And Bayes Theorem

The Decline And Increase Of Mainstream Religions In The USA: With Pictures!

Certainty & Uncertainty: Logical Probability & Statistics

More On The 1 in 1.6 Million Heat Wave Chance

Chance Of Heat Wave Only 1 in 1.6 Million? Or, Probability Gone Wrong

How Good Are You At Making Sports Predictions?

Observational Bayes > Parametric Bayes > Hypothesis Testing < Looking

There Is No Culture Without Inequality: Stove 1

Impose Your Beliefs Before They Impose Theirs

Telekinesis: Ideas In Our Reenchantment & Rectification

The Physics Of Blessings: Ideas In Our Reenchantment & Rectification