In a recent survey in a statistics class, it was determined that only 60% of the students attend class on Fridays. From past data, it was noted that 98% of those who went to class on Fridays pass the course, while only 20% of those who did not go to class on Fridays passed the course

a. What percentage of students is expected to pass the course?
b. Given that a person passes the course, what is the probability that he/she attended classes on Fridays?


a. 66.8%
b. .88

Business

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