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Expected number of students in the class

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The number of students in an upper level Finance class is random. 12% of the time, there are 12 students in the class, 26% of the time there are 17 students in the class, 37% of the time there are 22 students in the class, and otherwise, there are 28 students in the class. What is the expected number of students in the class?

Reference no: EM131098138

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