Tag Archives: analytics

It takes ~20 observations to verify your first significant digit of the mean with confidence. Do you know how many observations it takes to verify your first sig-fig of the variance? More like 1000. And that’s just to get one … Continue reading

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What’s Wrong with OKCupid’s Matching Algorithm

OKCupid is using the wrong mathematics to match potential dates together. But before I critique them, let me compliment them on what they’re doing right: “Our” mutual score is the geometric average of your score of me, and my score … Continue reading

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