At the beginning of a political science class at a large university, the students were asked which term, liberalor conservative, best described their political views.They were asked the same question at the end of the course, to see what effect the class discussions hadon their views. Of those that characterized themselvesas “liberal” initially, 30% held conservative views atthe end. Of those who were conservative initially, 40% moved to the liberal camp. It turned out that there werejust as many students with conservative views at the endas there had been liberal students at the beginning. Outof the 260 students in the class, how many held liberal and conservative views at the beginning of the courseand at the end? (No students joined or dropped the classbetween the surveys, and they all participated in bothsurveys.)
At the beginning of a political science class at a large university, the students were asked which term, liberalor conservative, best described their political views.They were asked the same question at the end of the course, to see what effect the class discussions hadon their views. Of those that characterized themselvesas “liberal” initially, 30% held conservative views atthe end. Of those who were conservative initially, 40% moved to the liberal camp. It turned out that there werejust as many students with conservative views at the endas there had been liberal students at the beginning. Outof the 260 students in the class, how many held liberal and conservative views at the beginning of the courseand at the end? (No students joined or dropped the classbetween the surveys, and they all participated in bothsurveys.)
Solution Summary: The author analyzes how many students held liberal and conservative views at the beginning and end of a political science course.
At the beginning of a political science class at a large university, the students were asked which term, liberalor conservative, best described their political views.They were asked the same question at the end of the course, to see what effect the class discussions hadon their views. Of those that characterized themselvesas “liberal” initially, 30% held conservative views atthe end. Of those who were conservative initially, 40% moved to the liberal camp. It turned out that there werejust as many students with conservative views at the endas there had been liberal students at the beginning. Outof the 260 students in the class, how many held liberal and conservative views at the beginning of the courseand at the end? (No students joined or dropped the classbetween the surveys, and they all participated in bothsurveys.)
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