A company interested in the health of its employees started a health program including monitoring blood pressure. Based on age, employees were categorized according to ranges of blood pressure by age intervals. Data are shown in the table below. . $$\begin{array}{l}
\begin{array} { | c | c | c | c | c | }
\hline & { \text { Age } } & \
\hline \text { BP } & \text { Under 30 } & \mathbf { 3 0 } - \mathbf { 4 9 } & \text { Over 50 } & \text { Total } \
\hline \text { Low } & 27 & 38 & 31 & 96 \
\hline \text { Normal } & 48 & 90 & 92 & 230 \
\hline \text { High } & 23 & 59 & 72 & 154 \
\hline \text { Total } & 98 & 187 & 195 & 480 \
\hline
\end{array}\
\text { The percentage of employees with normal or low blood pressure is }
\end{array}$$
A) 67.9% (326/480).
B) 47.9% (230/480).
C) 41.7% (96/230).
D) 80.0% (384/480).
E) 20.0% (96/480).

Question

A company interested in the health of its employees started a health program including monitoring blood pressure. Based on age, employees were categorized according to ranges of blood pressure by age intervals. Data are shown in the table below. . $$\begin{array}{l}
\begin{array} { | c | c | c | c | c | } 
\hline & { \text { Age } } & \
\hline \text { BP } & \text { Under 30 } & \mathbf { 3 0 } - \mathbf { 4 9 } & \text { Over 50 } & \text { Total } \
\hline \text { Low } & 27 & 38 & 31 & 96 \
\hline \text { Normal } & 48 & 90 & 92 & 230 \
\hline \text { High } & 23 & 59 & 72 & 154 \
\hline \text { Total } & 98 & 187 & 195 & 480 \
\hline
\end{array}\
\text { The percentage of employees with normal or low blood pressure is }
\end{array}$$
A) 67.9% (326/480).
B) 47.9% (230/480).
C) 41.7% (96/230).
D) 80.0% (384/480).
E) 20.0% (96/480).

Quizplus · Accepted Answer

The percentage of employees with normal or low blood pressure is calculated by adding the total number of employees with low blood pressure (96) to the total number of employees with normal blood pressure (230), which equals 326. Then, divide 326 by the total number of employees (480) and multiply by 100 to get the percentage: $ \frac{326}{480} \times 100 = 67.9\%$.

A Company Interested in the Health of Its Employees Started