Why randomness feels less random than it really is
Humans are excellent pattern-finders, which is useful until noise starts wearing a convincing disguise.
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Bayesian inferencecausal diagramsforecastinguncertaintysimulationp-valuesstatistical mythsmodel checking
Bayesian inferencecausal diagramsforecastinguncertaintysimulationp-valuesstatistical mythsmodel checking
Statistics, uncertainty & scientific instinct
Interesting stories from the world of statistical science.
Bayesic Instinct is a home for sharp, accessible and occasionally strange writing about statistics: probability, prediction, scientific evidence, public data, noisy measurements and the ways numbers shape how we understand the world.
Editorial promise
Statistics without the fake certainty.
The site is built around a simple idea: most interesting questions involve uncertainty. The goal is not to make numbers look clever. The goal is to make uncertainty readable.
Latest essays
Readable statistical science for curious people.
Starter essays are included so the site feels alive immediately. Replace, expand or link these cards as the blog grows.
The base rate is the quiet part of the calculation
A simple explanation of why rare events can produce surprising conclusions, even with good tests.
Read articleWhat a p-value can and cannot tell you
A practical guide to statistical significance without the ritualistic fog.
Read articleForecasts are not prophecies
Good forecasts are maps of uncertainty, not magic claims about the future.
Read articleCorrelation is a clue, not a confession
Why causal questions need structure, assumptions and often more humility than the chart suggests.
Read articleThe chart changed the conclusion
Small design choices can make the same dataset feel boring, alarming or decisive.
Read articleInteractive statistics
Play with assumptions instead of just reading about them.
The interactives section includes a configurable coin-flip simulator, a Bayes test calculator, and an uncertainty playground. They are intentionally lightweight so they work on normal hosting.
Open interactivesBiased coin simulator
Change the true probability, number of flips and animation speed. Watch the observed rate wobble and settle.
Bayes diagnostic calculator
Adjust prevalence, sensitivity and specificity to see how rare events can fool intuition.
Uncertainty interval playground
See how sample size changes the width of a simple uncertainty interval.
Topic map
What Bayesic Instinct covers.
Statistical myths
Common mistakes, misunderstood methods and suspicious charts.
Public data stories
Short data-led investigations about sport, health, economics, culture and science.
Bayesian thinking
Priors, likelihoods, evidence updates and better intuition under uncertainty.
Interactive explainers
Simple browser tools that let readers play with assumptions.
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