MediumProbability

Expected Max of Two Uniforms

Jane StreetCitadel

Two independent Uniform(0, 1) random variables are drawn. What is the expected value of the larger one?

Approach

Find the CDF of the max: P(maxx)=x2P(\max \le x) = x^2.

E[max of n uniforms] = n/(n+1).

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