Statistics – Page 97 – William M. Briggs

Bayes Theorem and Coronavirus: The Chance You Have It & The Chance You Die

I didn't have a chance to put this in yesterday's update, but I've been asked to do it. It's a classic in every 101 biostat textbook to do Bayes theorem…

Class Statistics

Coronavirus Update IV — Take A Deep Breath — If You Still Can

Apologies for the duplicate email! I hit the wrong button yesterday and published the incomplete update meant for today. All the good stuff, caveats, and explanations are linked, some in…

Culture Statistics

Proof That Music Is Growing Worse

This post originally ran 28 September 2011, and is in the top 20 of all posts. If I ever do it again, there is much I'd expand on. The basic…

Class Statistics

Coronavirus Update III: Secondary Peak and Freak——ing Out

All the good stuff, caveats, and explanations in linked in Update II, so go there first if you haven't seen it yet. Signs & Symptoms Skip to the next section…

Class Statistics

Observable-Based , Predictive, or Causal Statistics? Don’t Test! Don’t Estimate!

The term predictive statistics is used to describe a focus on observables, and not on any invisible model-based parameters as is found in estimation and null hypothesis significance testing. It…

Statistics

Coronavirus Update II, Stats & Predictions

The code to do the plots yourself is here, a post which should be read for all the caveats, explanations, and so on. The original coronavirus post is here, which…

Class Statistics

Probability Thought Experiment With NNT: Reader Question

From reader Ernst, this interesting probability/statistics question. First, NNT = number needed to treat, which is, stealing from this site to save time, "The Number Needed to Treat (NNT) is…

Statistics

Cohort Increases In Sex With Same-Sex Partners

Today's post title is stolen from a paper by the same name "Cohort Increases In Sex With Same-Sex Partners: Do Trends Vary by Gender, Race, and Class?" in Gender &…

spetzer86 on Lady Pilots Better Than Men, Says The ScienceAugust 7, 2025
I'm assuming they only asked pilots of fixed-wing aircraft and not those rotary-wing pilots flying in the Washington, DC area.
spetzer86 on Class 60: Does This Guy Have ESP? 1August 7, 2025
A person could still game your system by doing something complicated but not impossible. For example, repeatedly selecting one card…
hudbwu on New Definition Of Death To Increase Organ Harvest BountyAugust 7, 2025
> Today they take people who docs declare are in “irreversible coma” etc. and not “brain dead”. They are wheeled…
hudbwu on Lady Pilots Better Than Men, Says The ScienceAugust 7, 2025
A simple way to improve the study is to fire the subjects that don't fulfil some perfomance criterion. That would…
Lou on Class 60: Does This Guy Have ESP? 1August 7, 2025
Hello, Class 60: I am sticking with it, and its not at all too difficult. Please keep going at your…