You have 5 bottles, each containing 10 pills. In 4 of the bottles, the pills weigh 300 mg. In one of the bottles, they weigh 310 mg. You must determine which bottle contains the heavier pills, but you can’t tell the difference by holding them. You have an electric scale, but it’s almost out of battery. What is the minimum number of times you need to use the scale to determine with certainty which bottle has the heavier pills?

An overview of 8 common errors in data analysis: 1. Selection Bias 2. Regression to the Mean 3. Correlation and Causation 4. Clustering Illusion 5. Gambler's Fallacy 6. Base Rate Fallacy 7. Survivorship Bias 8. Simpson's Paradox

@ErikCumps You got it!

@ErikCumps I don't think so... what's the obvious answer to you?

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@inmyshoes2011 I will definitely include deepfake and misinformation. What is the sec?

@EricsElectrons Yeah. And it's an easy way to get a lot of views.

I think I will start by releasing a free version and, if there's enough interest, build a paid extended version. The first bit should be ready pretty soon! You can sign up here if you want to be notified when it's ready:

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