QUESTION 13 1 points Save Answer In a university, there are two statistics tutors named Mary and Robert. It is known that 60% of the student cohort are in tutorials run by Mary, while the rest were in tutorials run by Robert. After the final exam has been marked, it was found that 80% of Mary's students passed the final exam; while out of Robert's students, 90% passed the final exam. If one student is randomly selected, What is the probability that the student passed the exam? 0.571 0 0.480 0.840 0.429 QUESTION 14 1 points Save Answer In a university, there are two statistics tutors named Mary and Robert. It is known that 60% of the student cohort are in tutorials run by Mary, while the rest were in tutorials run by Robert. After the final exam has been marked, it was found that 80% of Mary's students passed the final exam; while out of Robert's students, 90% passed the final exam. If one student is randomly selected, What is the probability that the student passed the exam and was in Robert's tutorial? 0.600 0.360 0.429 0.400 QUESTION 15 1 points Save Answer In a university, there are two statistics tutors named Mary and Robert. It is known that 60% of the student cohort are in tutorials run by Mary, while the rest were in tutorials run by Robert. After the final exam has been marked, it was found that 80% of Mary's students passed the final exam; while out of Robert's students, 90% passed the final exam. One studnet is randomly selected Given that the selected student passed the exam, what is probability that they were in a tutorial ran by Mary? 0.429 0.480 0.571 0.528