Instruction 2-6
A sample of 200 students at a large university was taken after the final exam to ask them whether they went out on the weekend before the exam or spent the weekend studying,and whether they did well or poorly on the exam.The following table contains the result.
$$\begin{array} { | l | l | l | }
\hline & \text { Did Well on Exam } & \text { Did Poorly on Exam } \
\hline \text { Studying for Exam } & 80 & 20 \
\hline \text { Went out on the weekend } & 30 & 70 \
\hline
\end{array}$$
-Referring to Instruction 2-6,of those who did well on the exam in the sample,________ percent of them went out on the weekend before the exam.
A)30
B)50
C)15
D)27.27

Question

Instruction 2-6
A sample of 200 students at a large university was taken after the final exam to ask them whether they went out on the weekend before the exam or spent the weekend studying,and whether they did well or poorly on the exam.The following table contains the result.
 $$\begin{array} { | l | l | l | } 
\hline & \text { Did Well on Exam } & \text { Did Poorly on Exam } \
\hline \text { Studying for Exam } & 80 & 20 \
\hline \text { Went out on the weekend } & 30 & 70 \
\hline
\end{array}$$
-Referring to Instruction 2-6,of those who did well on the exam in the sample,________ percent of them went out on the weekend before the exam.
A)30
B)50
C)15
D)27.27

Quizplus · Accepted Answer

To find the percentage of students who did well on the exam and went out on the weekend before the exam, we need to look at the intersection of the "Did Well" row and the "Went Out" column, which is 24. Divide that by the total number of students who did well, which is 88 (sum of "Did Well" column), and multiply by 100 to get the percentage: (24/88) x 100 = 27.27. Therefore, the correct answer is D) 27.27.

Instruction 2-6 a Sample of 200 Students at a Large

Instruction 2-6
a Sample of 200 Students at a Large