Solve the problem.
-The table below shows the result of a polygraph test conducted on 2000 college students. Students were asked whether they had ever cheated on a test. All of them denied having cheated. Use the Table to answer the question. $$\begin{array} { l | c c c }
& \begin{array} { c }
\text { Test finds } \
\text { student lying }
\end{array} & \begin{array} { c }
\text { Test finds } \
\text { student truthful }
\end{array} & \text { Total } \
\hline \text { Has cheated } & 84 & 13 & 97 \
\text { Has not cheated } & 198 & 1705 & 1903 \
\text { Total } & 282 & 1718 & 2000
\end{array}$$ What percentage of those that were lying were found to be truthful?
A)29.8%
B)0.8%
C)13.4%
D)10.4%

Question

Solve the problem.
-The table below shows the result of a polygraph test conducted on 2000 college students. Students were asked whether they had ever cheated on a test. All of them denied having cheated. Use the Table to answer the question. $$\begin{array} { l | c c c } 
& \begin{array} { c } 
\text { Test finds } \
\text { student lying }
\end{array} & \begin{array} { c } 
\text { Test finds } \
\text { student truthful }
\end{array} & \text { Total } \
\hline \text { Has cheated } & 84 & 13 & 97 \
\text { Has not cheated } & 198 & 1705 & 1903 \
\text { Total } & 282 & 1718 & 2000
\end{array}$$ What percentage of those that were lying were found to be truthful?
A)29.8%
B)0.8%
C)13.4%
D)10.4%

Quizplus · Accepted Answer

The number of students who were lying (has cheated) is 97. Out of these, 13 were found to be truthful by the test. To find the percentage, divide 13 by 97 and multiply by 100: $(13/97) \times 100 = 13.4\%$.

Solve the Problem What Percentage of Those That Were Lying Were Found to a Polygraph