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Four buses carrying 160 students from th...

Four buses carrying 160 students from the same school arrive at a football stadium. The buses carry, respectively, 42, 36, 34, and 48 students. One of the students is randomly selected. Let X denote the number of students that were on the bus carrying the randomly selected student. Let Y denote the number of students on that bus. Then E[X] and E[Y] respectively are

A

50,40

B

40,50

C

40,75,40

D

41,41

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The correct Answer is:
c
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PREMIERS PUBLISHERS-PROBABILITY DISTRIBUTIONS-EXERCISE 11.6
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