Related to the Economics in Practice on p. 10: Based on a study of the effects of roommates on college grades discussed in the Economics in Practice, which of the following is true?

A) The effects of roommates on grade point average are strong.
B) The effects of roommates on effort in school are strong.
C) The effects of roommates on fraternity membership are strong.
D) all of the above

Economics in Practice

The application of economic theories and principles to real-world scenarios and the analysis of economic behaviors and events.

Grade Point Average

An average score that represents the cumulative performance of a student in their academic courses, calculated on a scale, often 0 to 4.0 or 5.0.

College Grades

The grading system used in higher education to measure and record students' academic performance.