The table below shows the soft drinks preferences of people in three age groups The table below shows the soft drinks preferences of people in three age groups.
$\begin{array}{l|ccc}
& \text { Cola } & \text { Root beer } & \text { Lemon-lime } \
\hline \text { Under 21 years of age } & 40 & 25 & 20 \
\text { Between 21 and 40 } & 35 & 20 & 30 \
\text { Over 40 years of age } & 20 & 30 & 35
\end{array}$

If one of the 255 subjects is randomly selected, find the probability (in fractional form) that the person is over 40 and drinks cola.
A) $\frac { 4 } { 19 }$
B) $\frac { 4 } { 17 }$
C) $\frac { 4 } { 51 }$
D) None are correct.

Question

The table below shows the soft drinks preferences of people in three age groups The table below shows the soft drinks preferences of people in three age groups.
$\begin{array}{l|ccc} 
& \text { Cola } & \text { Root beer } & \text { Lemon-lime } \
\hline \text { Under 21 years of age } & 40 & 25 & 20 \
\text { Between 21 and 40 } & 35 & 20 & 30 \
\text { Over 40 years of age } & 20 & 30 & 35
\end{array}$

If one of the 255 subjects is randomly selected, find the probability (in fractional form) that the person is over 40 and drinks cola.
A) $\frac { 4 } { 19 }$
B) $\frac { 4 } { 17 }$
C) $\frac { 4 } { 51 }$
D) None are correct.

Quizplus · Accepted Answer

The total number of subjects is 255. The number of people over 40 who drink cola is 20. Therefore, the probability is $\frac{20}{255} = \frac{4}{51}$.

The Table Below Shows the Soft Drinks Preferences of People