Logical Reasoning Quiz
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STRENGTHEN & WEAKEN
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A community college offered a free tutoring program for students in introductory chemistry. Among students who attended at least four sessions, the course pass rate was 85%, compared to 65% for students who did not attend. Since the same instructor taught all sections, the program coordinator concludes that tutoring caused the higher pass rate. Therefore, if the college expands the tutoring program to all difficult introductory courses, overall graduation rates will rise substantially, because more students will pass their required classes on the first try.
Which one of the following, if true, most strengthens the argument?
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