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20 May 2018
1 mark 12. Statistical data indicate that during their university studies, 90% of students fail at most three courses while 40% of students fail at least one course. Based on the data, what percentage of students failed at least one course, but not more than three courses? A: 10% B: 50% C: 40% D: 20% E: 30%
1 mark 12. Statistical data indicate that during their university studies, 90% of students fail at most three courses while 40% of students fail at least one course. Based on the data, what percentage of students failed at least one course, but not more than three courses? A: 10% B: 50% C: 40% D: 20% E: 30%
Jarrod RobelLv2
21 May 2018
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