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Choose real numbers X and Y uniformly and independently in [0; 1]. What is the probability...

Choose real numbers X and Y uniformly and independently in [0; 1]. What is the
probability that the quadratic equation a2 + Xa + Y = 0 has two distinct real
solutions a1 and a2?
Hint: Draw a picture in the XY -plane.

Math   Statistics-And-Probability   
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