William M. Briggs

Every Family Has Children Until They Have A Boy: Probability Stumper

Reader Bryan Davies quoted a poser from Math Overflow (have we heard of that?) which read: In a country in which people only want boys every family continues to have…

Statistics

Scientists Claim Homosexual Men Have Different Faces

In the journal that brought you "Is a Woman's Preference for Chest Hair in Men Influenced by Parasite Threat?"1, "Accurate Identification of a Preference for Insertive Versus Receptive Intercourse from…

Fun Philosophy

What Do You Call Believer in Scientism? Contest

Toby Young at the Spectator ran this tweet yesterday: https://twitter.com/toadmeister/status/402545969956261888 The text (if you can't see) reads: "Is there a name for people who think reason and research evidence alone…

Philosophy Statistics

Observational Versus Controlled Trials

Received this email from a reader: I took on board all I read on your website, and it has created confusion in my mind. I have been reading Ioannidis and…

Philosophy

Dawkins Gets It Wrong Again: Similar Is Not The Same

Richard Dawkins in an article to the New Statesman---the same issue which somebody who obviously wasn't in full possession of his faculties assigned to Dawkins as editor---the Christmas issue, mind---an…

Statistics

We’re 88% Through The International Year Of Statistics

I hadn't any idea we'd even started. But thanks to reader Dan Hughes and his link to the Wall Street Journal story Odds Lot: Statisticians Party Like It's 2.013 x…

Statistics

Nonstatisticians Often Screw Up Statistics

Title stolen from article of same name by Leland Teschler in the trade journal Machine Design. Update Statisticians often screw up statistics, too. See below. The article is the result…

Statistics

Johnson’s Revised Standards For Statistical Evidence

Thanks to the many readers who sent me Johnson's paper, which is here (pdf). Those who haven't will want to read "Everything Wrong With P-values Under One Roof", the material…

Briggs on Shocking Abortion Numbers: Death Distributions Show We’re Living LongerMay 29, 2026
JohnK, Thanks. Rather depressing.
JohnK on Shocking Abortion Numbers: Death Distributions Show We’re Living LongerMay 29, 2026
Long time, no comment, but a few years ago I compared estimated stillbirth + abortion numbers (excluding miscarriages) in the…
Stickler on Shocking Abortion Numbers: Death Distributions Show We’re Living LongerMay 29, 2026
Men do not simply “allow” women to kill their children. They also demand it, drive or coerce them to the…
John M on Shocking Abortion Numbers: Death Distributions Show We’re Living LongerMay 28, 2026
The research and studies about reversing Alzheimer's and other dementia is amazing. It will have a big impact on longevity…
C-Marie on Shocking Abortion Numbers: Death Distributions Show We’re Living LongerMay 28, 2026
Once a woman becomes pregnant, she is a mother, and the man who gave his sperm is a father. When…

William M. Briggs

Class 90: Simple (Optimal) Decisions

Shocking Abortion Numbers: Death Distributions Show We’re Living Longer

Blessed Memorial Day; No Class; See You Wednesday

Why There Are (Probably) No UFOs: “Climate Change”

Creating Microbial Monsters To Terrorize Ourselves

Class 89: The Measure Most Modelers Forget: Skill Examples

The Shocking Conclusion of the HR Trilemma!

The HR Trilemma: Which Door Decides Your Fate?

Capital Punishment Deters Crime More Than The Death Penalty

How Experts Use “Calamities” to Find Official Victims & Gain Power

Richard Dawkins, The Big Muscles Fallacy & AI Pachinko

Class 88: The Most Neglected Concept: Skill

The Red-Blue Button Dilemma & Its Surprising Answer

UFO Reports About To Blast Off!

Class 87: Calibration & Conformal Prediction: Examples

Noticing Differences Between Races Does Not Pay

What Are The Chances Of All These Scientists Dying, Killed, Or Going Missing?

Class 86: Calibration & Conformal Prediction: Theory

How A Miracle Turns Mundane

Contest Winner Announced!

Trump’s Last Stand: Mea Culpa, Redux — Guest Post by Ianto Watt

Class 90: Simple (Optimal) Decisions

Shocking Abortion Numbers: Death Distributions Show We’re Living Longer

Every Family Has Children Until They Have A Boy: Probability Stumper

Scientists Claim Homosexual Men Have Different Faces

What Do You Call Believer in Scientism? Contest

Observational Versus Controlled Trials

Dawkins Gets It Wrong Again: Similar Is Not The Same

We’re 88% Through The International Year Of Statistics

Nonstatisticians Often Screw Up Statistics

Johnson’s Revised Standards For Statistical Evidence

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