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Two random variables X and Y have joint density function f(x,y) =c(where c >0 denotes an...

Two random variables X and Y have joint density function f(x,y) =c(where c >0 denotes an unknown constant) on the rectangle 0< x <10,0< y <3 (and zero elsewhere).

(a) Findc.

(b) FindP(X >5Y).

(c) FindP(X= 5Y).

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