Independent random variables
Let A, B, and C be independent random variables, uniformly distributed over [0,7 ], [0,8], and [0,3] respectively. What is the probability that both roots of the equation Ax^2 + Bx + C = 0 are real?
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The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10 students in a beginning computer-science course. The results were as follows. (Give your answers correct to two decimal
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