Question: handwrite solution please??????? 7.23 If both ( X ) and ( Y ), distributed independently, follow exponential distributions with mean parameter 1 , find the

handwrite solution please??????? 7.23 If both $ X $ and $ Y $, distributed independently, follow exponential distributions with mean parameter 1 , find the distributions of (a) $ U=X+Y $; (b) $ V=X /(X+Y) $. 2 answers

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