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| rev | Admin | (Created page with "'''Key: A''' <math display = "block"> \begin{aligned} \operatorname{E}(S) &= \operatorname{E}(N)\operatorname{E}(X) = 50(200) = 10,000 \\ \operatorname{E}[ S ) &= \operatorna...") | May 14'23 at 1:28 | +462 |