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Four buses carrying162 high school students arrive to Montreal. The buses carry, respectively,40,47,33, and42 students. One of the students is randomly selected. LetXdenote the number

Four buses carrying162 high school students arrive to Montreal. The buses carry, respectively,40,47,33, and42 students. One of the students is randomly selected. LetXdenote the number of students that were on the bus carrying this randomly selected student. One of the4 bus drivers is also randomly selected. LetY denote the number of students on his bus. Compute the expectations ofX.

E(X)= ?

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