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Probability 5.0/10

Rounding a Ratio

Two real numbers x and y are chosen independently and uniformly at random from the interval (0, 1). What is the probability that the integer nearest to x/y is even? (Zero counts as even.) Give an exact closed form, or a decimal rounded to 4 places.

Related problems

Source: Putnam 1993, Problem B3. Statement written for AxiomIQ.