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Difficulty: Hard
Category: Mental Math & Estimation
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: mental-math, estimation, harmonic-series, approximation
Estimate the following sum to one decimal place: $ \sum_{k=1}^{10} \frac{1}{k} $ This tests your ability to quickly approximate sums and use common estimations in a trading environment where quick calculations are crucial.
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