Calculate expectations of students which were on bus

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Reference no: EM13110698

Four buses carrying 172 high school students arrive to Montreal. Buses carry, respectively,40, 50, 34, and 48 students. One of the students is arbitarily selected. Let X denote number of students which were on bus carrying this arbitarily selected student. One of 4 bus drivers is also arbitarily selected. Let Y denote number of students on his bus. Calculate the expectations of X and Y.

Reference no: EM13110698

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