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题目材料
During a recent semester at University X, 25 students enrolled in an economics class. Each student was enrolled in the university's 4-year business program and took the course either as a traditional student (attending class and sitting for exams in person) or as an online student (listening to lectures and taking exams via computer), but not both. For each student, the table indicates whether he or she took the course online, along with his or her year in the program and scores on Exam 1, Exam 2, and the final exam. The final score was computed as a weighted mean of the scores on Exam 1, Exam 2, and the final exam, using the same weights for each student.
正确答案:
| No | Yes | |
|---|---|---|
| The score on the final exam had equal weight with the score on Exam 2 In computing the final score. | ||
| The median final score for all 25 students was 81.50. | ||
| For Exam 1 scores for students in year 3 of the program, the range was 40. |