Mathematics, 25.06.2021 01:40 woodfordmaliky

The box has 2 blue balls, 5 red balls and n yellow balls. Now, you draw a ball from the box. You get 2000 dollors if you draw blue ball, 1000 dollors if you draw red ball, and 0 dollors if you draw yellow ball. If the expect value of draw a ball is 600 dollors, what is the value of n? (A)8 (B)9 (C)10 (D)11 (E)12

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The box has 2 blue balls, 5 red balls and n yellow balls. Now, you draw a ball from the box. You get...