Use the following information to answer the Questions:
A company gives a new screening test to test its employees for tuberculosis (TB). The results are summarized in the following table. $$\begin{array} { | l | c | c | }
\hline \text { Test result } & \text { Has TB } & \begin{array} { c }
\text { Does not have } \
\text { TB }
\end{array} \
\hline \text { Positive } & 21 & 14 \
\hline \text { Negative } & 4 & 140 \
\hline
\end{array}$$
-If an employee is randomly selected from the company, what is the probability that the employee has a positive test result?
A) 21/35
B) 35/179
C) 25/179
D) 4/144

Question

Use the following information to answer the Questions:
A company gives a new screening test to test its employees for tuberculosis (TB). The results are summarized in the following table. $$\begin{array} { | l | c | c | } 
\hline \text { Test result } & \text { Has TB } & \begin{array} { c } 
\text { Does not have } \
\text { TB }
\end{array} \
\hline \text { Positive } & 21 & 14 \
\hline \text { Negative } & 4 & 140 \
\hline
\end{array}$$
-If an employee is randomly selected from the company, what is the probability that the employee has a positive test result?
A) 21/35
B) 35/179
C) 25/179
D) 4/144

Quizplus · Accepted Answer

To find the probability of a positive test result, add the number of positive test results (21 with TB + 14 without TB = 35) and divide by the total number of employees tested (21 with TB + 14 without TB + 4 without TB + 140 without TB = 179). So, the probability is 35/179.

Use the Following Information to Answer the Questions: a Company

Use the Following Information to Answer the Questions:
a Company