Assume that a survey of 253 people is taken to determine the opinions of doctors, teachers, and lawyers on a proposed piece of legislation, with the results as shown below.A person is chosen at random from
Those surveyed.Refer to the table to find the probability the person favors the legislation. $$\begin{array}{l}
\begin{array} { | l | l | l | l | l | }
\hline & \begin{array} { l }
\text { Number that } \
\text { favor }
\end{array} & \begin{array} { l }
\text { Number that } \
\text { oppose }
\end{array} & \begin{array} { l }
\text { Number with } \
\text { no opinion }
\end{array} & \text { Total } \
\hline \text { Doctors } & 70 & 27 & 15 & 112 \
\hline \text { Teachers } & 75 & 15 & 11 & 101 \
\hline \text { Lawyers } & 16 & 16 & 8 & 40 \
\hline \text { Total } & 161 & 58 & 34 & 253 \
\hline
\end{array}\
\end{array}$$
A) 0.64
B) 0.5
C) 0.101
D) 0.253
E) 0.70

Question

Assume that a survey of 253 people is taken to determine the opinions of doctors, teachers, and lawyers on a proposed piece of legislation, with the results as shown below.A person is chosen at random from
Those surveyed.Refer to the table to find the probability the person favors the legislation. $$\begin{array}{l}
\begin{array} { | l | l | l | l | l | } 
\hline & \begin{array} { l } 
\text { Number that } \
\text { favor }
\end{array} & \begin{array} { l } 
\text { Number that } \
\text { oppose }
\end{array} & \begin{array} { l } 
\text { Number with } \
\text { no opinion }
\end{array} & \text { Total } \
\hline \text { Doctors } & 70 & 27 & 15 & 112 \
\hline \text { Teachers } & 75 & 15 & 11 & 101 \
\hline \text { Lawyers } & 16 & 16 & 8 & 40 \
\hline \text { Total } & 161 & 58 & 34 & 253 \
\hline
\end{array}\
\end{array}$$
A) 0.64
B) 0.5
C) 0.101
D) 0.253
E) 0.70

Quizplus · Accepted Answer

The total number of people who favor the legislation is 161, out of a total of 253 surveyed. So the probability that a person selected at random from those surveyed favors the legislation is $\frac{161}{253} \approx 0.64$. Therefore, the correct choice is A.

Assume That a Survey of 253 People Is Taken to Determine