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| rev | Admin | (Created page with "'''Solution: E''' E[Y] = 4000(0.4) + 3000(0.6)(0.4) + 2000(0.6) 2 (0.4) + 1000(0.6)3 (0.4) = 2694. {{soacopyright | 2023}}") | May 3'23 at 22:24 | +125 |