In a U.S.national survey conducted in 2011,_____ percent of twelfth-graders reported that they had experienced sexual intercourse,compared with _____ percent of ninth-graders.
A) 20; 10
B) 63; 33
C) 77; 90
D) 60; 52

Question

Quizplus · Accepted Answer

According to the data presented, 63 percent of twelfth-graders reported that they had experienced sexual intercourse, while 33 percent of ninth-graders had. Therefore, the correct answer is B.

In a USNational Survey Conducted in 2011,_____ Percent of Twelfth-Graders Reported That