Instruction 4.8 According to the Record of the Registrar's Office at a at a University

question 72

Short Answer

Instruction 4.8
According to the record of the registrar's office at a university, 35% of the students are first-year, 25% are second-year, 16% are third-year and the rest are doing their honours year. Among the first-year, second-year, third-year and honours students, the portion of students who live in a residential college are, respectively, 80%, 60%, 30% and 20%.
-Referring to Instruction 4.8,if a randomly selected student lives in a residential college,what is the probability that the student is a first-year student?

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Definitions:

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