Solve the Problem What Percentage of Those That Have the Disease Tested Positive

Solve the problem.
-The table below shows the number of people testing positive for a certain disease amongst those who do have the disease and amongst those who don't. Use the table to answer the question. $$\begin{array} { l | c c r } & \begin{array} { c } \text { Test } \\\text { positive }\end{array} & \begin{array} { c } \text { Test } \\\text { negative }\end{array} & \text { Total } \\\hline \text { Disease } & 108 & 12 & 120 \\\text { No disease } & 1105 & 8775 & 9880 \\\text { Total } & 1213 & 8787 & 10,000\end{array}$$ What percentage of those that have the disease tested positive?

A) 90%
B) 8.9%
C) 88.8%
D) 12.1%

Correct Answer:

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