Statistics
When to Stop and Choose: The Secretary Problem
The secretary problem asks how to maximize the chance of picking the very best candidate when you must decide on each one on the spot. This article explains its rules, why the answ
Statistics
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Statistics
Torture the Numbers and They Will Confess: P-hacking
P-hacking is the practice of analysing data in different ways until a “statistically significant” result appears. We look at what p-values mean, the common ways p-hacking happens,
Statistics
Collecting Chance to Find the Answer: The Monte Carlo Method
The Monte Carlo method estimates an answer by repeating a huge number of random trials and averaging the results. We look at how it was born, how it works in four steps, easy examp
Statistics
The Paradox That Says Switch to Win: The Monty Hall Problem
The Monty Hall problem is a classic conditional-probability puzzle about how to update the odds when new information arrives. This piece covers the host’s rules, why switching wins
Statistics
The Number to Check Before the Evidence: The Base Rate Fallacy
The base rate fallacy is judging from vivid case details while ignoring how common an event usually is. This piece covers Kahneman and Tversky’s research, the cab problem, everyday
Statistics
Twenty-Three People Are Enough: The Birthday Paradox
Why is it so likely that two people in a small group share a birthday? This article covers the birthday paradox, the two keys to calculating it, why our intuition misses it, and ho
Statistics
The Illusion That Next Time Will Be Different: The Gambler's Fallacy
If a coin lands heads five times in a row, will the next toss be tails? This article explains the gambler's fallacy, the belief that past results change what comes next, along with
Statistics
When Chance Adds Up to Order: The Law of Large Numbers
Why does the share of heads get closer to half the more times you toss a coin? This article explains the meaning and principle of the law of large numbers, its history beginning wi
Statistics
The Rule Hidden in the First Digit: Benford's Law
In many naturally occurring sets of numbers, smaller leading digits appear far more often: about 30.1% start with 1, and only about 4.6% with 9. This article explains the definitio
Statistics
The Greatest Theorem in Statistics: The Central Limit Theorem (CLT)
The data in the real world we live in are never neatly organized. Some data are skewed to one side, some have multiple peaks, and others are scattered irregularly without any patte
Statistics
Understanding t-Tests and How to Use Them Effectively
Many statistical techniques are used in data analysis, and the t-test is a prominent method frequently used in data analysis and research to test differences between two groups. Th
Statistics
The Normal Distribution: Practical Applications for Analysis and Prediction
The normal distribution plays a central role in statistics and data analysis. This article covers its basic concepts and characteristics, its mathematical definition and properties