A automobile marketing firm conducts a study to see what types of cars people owned before buying an American car.The results are shown below. $$\begin{array} { | c | c | }
\hline \text { Previous Ownership } & \text { Frequency } \
\hline \text { American } & 760 \
\hline \text { Japanese } & 375 \
\hline \text { Korean } & 72 \
\hline \text { German } & 37 \
\hline \text { Other } & 24 \
\hline \text { Total } & \mathbf { 1 2 6 8 } \
\hline
\end{array}$$ The relative frequency of those who owned Japanese cars previously who now bought
American cars is
A)59.9 %
B)29.6%
C)5.7%
D)14.9%
E)2.9%

Question

A automobile marketing firm conducts a study to see what types of cars people owned before buying an American car.The results are shown below. $$\begin{array} { | c | c | } 
\hline \text { Previous Ownership } & \text { Frequency } \
\hline \text { American } & 760 \
\hline \text { Japanese } & 375 \
\hline \text { Korean } & 72 \
\hline \text { German } & 37 \
\hline \text { Other } & 24 \
\hline \text { Total } & \mathbf { 1 2 6 8 } \
\hline
\end{array}$$ The relative frequency of those who owned Japanese cars previously who now bought
American cars is
A)59.9 %
B)29.6%
C)5.7%
D)14.9%
E)2.9%

Quizplus · Accepted Answer

The relative frequency is calculated by dividing the frequency of the group of interest (Japanese cars) by the total frequency, then multiplying by 100 to get a percentage. For Japanese cars, this is $ \frac{375}{1268} \times 100 = 29.6\%$.

A Automobile Marketing Firm Conducts a Study to See What