A lecturer has determined from her past experience that at the end of the semester, 70% of her students would have no absenteeism, 20% of her students would have 1-day absenteeism and 10% would have 2-day absenteeism. However, at the end of this semester, lecturer checked a random sample of 200 students; finding 100 to have no absenteeism, 40 to have 1-day absenteeism and 60 to have 2-day absenteeism. Following these observed numbers, what are the expected numbers for no absenteesim, 1-day and 2-day absenteesims?

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A lecturer has determined from her past experience that at the end of the semester, 70% of her students would have no absenteeism, 20% of her students would have 1-day absenteeism and 10% would have 2-day absenteeism. However, at the end of this semester, lecturer checked a random sample of 200 students; finding 100 to have no absenteeism, 40 to have 1-day absenteeism and 60 to have 2-day absenteeism. Following these observed numbers, what are the expected numbers for no absenteesim, 1-day and 2-day absenteesims?

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