William M. Briggs

A Bust—I mean must—Read; Or, An Evolution in Bra Sizes

"Excuse me, miss. Would you care to participate in science?" Sometimes being a statistician is enviable. In a flash of scientific brilliance, Australian statisticians have just completed a massive study…

Fun Statistics

M. Night Shyamalan, Mel Gibson, and John Wayne

Part II of the Two-Envelope problem was not too friendly, so here's something that is. Via HotAir, I came across the site Marginal Revolution, in which was featured a graph…

Philosophy Statistics

The Two-Envelope Problem Solution: Part II

Read Part I first. We are in the peek first game here. The distribution of N When X is odd, and all X are discrete, we know we should always…

Philosophy Statistics

The Two-Envelope Problem Solution: Part I

Another probability "paradox", the two-envelope problem1, goes like this: Before you are two envelopes, A and B. One of them contains $X and the other $2X (which is equivalent to…

Culture Fun

Four Chords Is All You Need: The Limited Nature of Pop Music

Coming tomorrow: the infamous two-envelope problem, solved! More mathematical constructivism. But today, as it's Sunday, something light and airy...and non taxing. A "comedy rock" group which bills itself as the…

Statistics

St Petersburg Paradox; Games and Statistical Decisions; RIP David Blackwell

David Blackwell, who died two weeks ago, was one of the first mainstream statisticians to "go Bayesian." And for that and his unique skill in clearly explaining difficult ideas, we…

Statistics

How to Fool Yourself—And Others—With Statistics

See the news box to the left. I wrote this long ago and never used it. I do not love it. But since I am so busy, I haven't the…

Statistics

US Military Fatality Statistics: Have Suicides Increased?

All statistics were gathered from this DOD site. 2010 numbers were current as of 5 June this year; they were not part of the plots below. In 1983, the year…

Lucy Tucker on How Women’s Equality In Democracies Changes Voting (And Everything Else)February 5, 2026
I’m ready to give up the right to vote.
spetzer86 on Impossible LSAT Statistics QuestionFebruary 5, 2026
Could this scenario validate (A) and (D)? (A): When living in a country with a strong, pervasive religious belief, particularly…
spaceranger on Impossible LSAT Statistics QuestionFebruary 4, 2026
I usually go with "b." or "Asia" on those multiple choice ones.
Cary D Cotterman on Polar Bears Are Doing Fine: Activists, Not So WellFebruary 4, 2026
Polar bears have existed for at least half a million years, and possibly as long as a million. They have…
Brian (bulaoren) on Polar Bears Are Doing Fine: Activists, Not So WellFebruary 4, 2026
Dr. Briggs I was afraid I'd hijacked your subject today with my, rather dark, "Walter Lantz" cartoon. Returning to your…

William M. Briggs

Polar Bears Are Doing Fine: Activists, Not So Well

Impossible LSAT Statistics Question

How Women’s Equality In Democracies Changes Voting (And Everything Else)

Class 77: Trendy Trends In Time Series

Who Still Listens To AM Radio?

Scientists Invent New Name For Models: Digital Twins

What Science Says About Making Medication Mandatory

What A Winter

FDA Goes Bayes: It Should Have Gone Probability

Class 76: That’s Not Noise. That’s Signal!

AI: The Earth Is Spinning Faster & Slower (Because “Climate Change”)

Confirmation Bias In The Minneapolis Shooting

Sports Betting Is An Excellent Way To Lose Money

Class 75: A Gentle Introduction To Time Series

The Consent Fallacy

On Laws Banning Hacking Women’s Genitals & Imposing Beliefs

Register Your Predictions For 2026!

Happy New Year!

How Did We Do In Our 2025 Predictions?

Why The Drake Equation Fails

Canada Invents New Euphemism For Doctor Killings

Polar Bears Are Doing Fine: Activists, Not So Well

Impossible LSAT Statistics Question

A Bust—I mean must—Read; Or, An Evolution in Bra Sizes

M. Night Shyamalan, Mel Gibson, and John Wayne

The Two-Envelope Problem Solution: Part II

The Two-Envelope Problem Solution: Part I

Four Chords Is All You Need: The Limited Nature of Pop Music

St Petersburg Paradox; Games and Statistical Decisions; RIP David Blackwell

How to Fool Yourself—And Others—With Statistics

US Military Fatality Statistics: Have Suicides Increased?

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