Critical Reasoning (CR) | Re: Cheever College offers several online courses via remote computer conn

­(A) Among students who did not withdraw, students enrolled in online courses got higher grades, on average, than students enrolled in classroom-basedcourses.
Given that the average grades are the same overall and withdrawals (which are considered failures) are more frequent in online courses, it follows that the grades of those who did not withdraw from online courses must be higher to balance out the higher number of failures. This balances the overall average, which makes option (A) anecessity.

(B) The number of students enrolled per course at the start of the school term is much higher, on average, for the online courses than for the classroom-basedcourses.
The information given does not provide any data about the enrollment numbers per course at the start of the term. Therefore, this statement cannot be concluded as true.

(C) There are no students who take both an online and a classroom-based course in the same schoolterm.
The given information does not discuss the enrollment
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Statistics : Posted by Gemmie • on 12 May 2011, 01:37 • Replies 18 • Views 61292

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