Refer to the table which summarizes the results of testing for a certain disease. $$\begin{array} { l | c c }
& \begin{array} { l }
\text { Positive } \
\text { Test Result }
\end{array} & \begin{array} { l }
\text { Negative } \
\text { Test Result }
\end{array} \
\hline \text { Subject has the disease } & 87 & 9 \
\text { Subject does not have the disease } & 27 & 312
\end{array}$$ A test subject is randomly selected and tested for the disease. What is the probability the subject has the disease given that the test result is negative?
A) 0.094
B) 0.028
C) 0.972
D) 0.221

Question

Refer to the table which summarizes the results of testing for a certain disease. $$\begin{array} { l | c c } 
& \begin{array} { l } 
\text { Positive } \
\text { Test Result }
\end{array} & \begin{array} { l } 
\text { Negative } \
\text { Test Result }
\end{array} \
\hline \text { Subject has the disease } & 87 & 9 \
\text { Subject does not have the disease } & 27 & 312
\end{array}$$ A test subject is randomly selected and tested for the disease. What is the probability the subject has the disease given that the test result is negative?
A) 0.094
B) 0.028
C) 0.972
D) 0.221

Quizplus · Accepted Answer

The Answer of Refer to the table which summarizes the results of testing for a certain disease. $$\begin{array} { l | c c } 
& \begin{array} { l } 
\text { Positive } \
\text { Test Result }
\end{array} & \begin{array} { l } 
\text { Negative } \
\text { Test Result }
\end{array} \
\hline \text { Subject has the disease } & 87 & 9 \
\text { Subject does not have the disease } & 27 & 312
\end{array}$$ A test subject is randomly selected and tested for the disease. What is the probability the subject has the disease given that the test result is negative?
A) 0.094
B) 0.028
C) 0.972
D) 0.221

Refer to the Table Which Summarizes the Results of Testing