Probability · Statistics · Interviews
Quant ideas you can poke at
Probability, statistics and quant interview problems, explained with interactive figures. Each post covers one trick, the intuition for why it works, and practice problems with hidden answers.
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1 post- Quant interview toolkit · order statistics
Finding the maximum: count “all at most k”, then subtract
The max trick for order statistics: get the distribution, expected value and minimum of n dice or uniforms from one idea, P(max ≤ k) = F(k)ⁿ.