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| rev | Bot | (Created page with "<div class="d-none"><math> \newcommand{\NA}{{\rm NA}} \newcommand{\mat}[1]{{\bf#1}} \newcommand{\exref}[1]{\ref{##1}} \newcommand{\secstoprocess}{\all} \newcommand{\NA}{{\rm NA}} \newcommand{\mathds}{\mathbb}</math></div> Suppose that <math>X</math> and <math>Y</math> are independent and <math>Z = X + Y</math>. Find <math>f_Z</math> if <ul><li> <math display="block"> f_X(x) = \left \{ \begin{array}{ll} \lambda e^{-\lambda x}, & \mbox...") | Jun 9'24 at 4:26 | +1,391 |