Let the random variables X and y be independent and obey the uniform distribution on the interval [0, a], and then calculate the probability density of the random variable z = x / y

It is convenient to draw a picture to solve the problem of uniform distribution
Firstly, (x, y) obeys two-dimensional uniform distribution, and the density function is the reciprocal of the area, i.e. 1 / A ^ 2
P{Z

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1. If the random variables X and y are independent of each other and obey the uniform distribution on the interval (0,1), then the following random variables obey the uniform distribution A.x & # 178; b.x + y, C. (x, y) d.x-y, please give me a process,
2. Probability theory: let the probability density of random variable X be f (x) = {A / X & # 178;, x > 10; 0, X
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