Find the indicated probability. Express your answer as a simplified fraction unless otherwise noted.
-The table below shows the soft drinks preferences of people in three age groups.
$$\begin{array} { r | c c c }
& \text { cola } & \text { root beer } & \text { lemon-lime } \
\hline \text { under 21 years of age } & 40 & 25 & 20 \
\text { between 21 and 40 } & 35 & 20 & 30 \
\text { over 40 years of age } & 20 & 30 & 35
\end{array}$$
If one of the 255 subjects is randomly selected, find the probability that the person is over 40 years of age.

A) $\frac { 1 } { 2 }$

B) $\frac { 2 } { 5 }$

C) $\frac { 3 } { 5 }$

D) $\frac { 1 } { 3 }$

Question

Find the indicated probability. Express your answer as a simplified fraction unless otherwise noted.
-The table below shows the soft drinks preferences of people in three age groups. 
$$\begin{array} { r | c c c } 
& \text { cola } & \text { root beer } & \text { lemon-lime } \
\hline \text { under 21 years of age } & 40 & 25 & 20 \
\text { between 21 and 40 } & 35 & 20 & 30 \
\text { over 40 years of age } & 20 & 30 & 35
\end{array}$$ 
If one of the 255 subjects is randomly selected, find the probability that the person is over 40 years of age.

A) $\frac { 1 } { 2 }$

B) $\frac { 2 } { 5 }$

C) $\frac { 3 } { 5 }$

D) $\frac { 1 } { 3 }$

Quizplus · Accepted Answer

The total number of people over 40 years of age is 20 + 30 + 35 = 85. The total number of subjects is 255. Therefore, the probability is 85/255, which simplifies to 1/3.

Find the Indicated Probability If One of the 255 Subjects Is Randomly Selected, Find