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

question 14

Multiple Choice

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%

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Definitions:

Compound Interest

Interest that accrues on the principal amount as well as on the accrued interest from earlier periods, for either a deposit or a loan.

Simple Interest Rate

The percentage of interest paid on the original principal amount of a loan or investment, not compounding over time.

Compound Interest

Interest on both the initial principal and the accumulated interest from previous periods on a deposit or loan.

Rates of Return

Financial returns or setbacks on an investment throughout a chosen timeframe, indicated as a percentage of the investment's original expenditure.