390 voters are classified by income and political party. The results are shown in the table. If a person isselected at random from the sample, find the probability that the person has medium income or votesDemocrat. $$\begin{array} { l c c c }
\hline & \text { Democrat } & \text { Republican } & \text { Total } \
\hline \text { Low Income } & 107 & 75 & 182 \
\text { Medium Income } & 92 & 67 & 159 \
\text { High Income } & 19 & 19 & 38 \
\text { Super High Income } & 7 & 4 & 11 \
\text { Total } & 225 & 165 & 390 \
\hline
\end{array}$$

Question

390 voters are classified by income and political party. The results are shown in the table. If a person isselected at random from the sample, find the probability that the person has medium income or votesDemocrat. $$\begin{array} { l c c c } 
\hline & \text { Democrat } & \text { Republican } & \text { Total } \
\hline \text { Low Income } & 107 & 75 & 182 \
\text { Medium Income } & 92 & 67 & 159 \
\text { High Income } & 19 & 19 & 38 \
\text { Super High Income } & 7 & 4 & 11 \
\text { Total } & 225 & 165 & 390 \
\hline
\end{array}$$

Quizplus · Accepted Answer

To find the probability that a person has medium income or votes Democrat, we add the number of people with medium income (159) to the number of Democrats (225), and then subtract the overlap (Democrats with medium income, which is 92) to avoid double counting. This gives us $159 + 225 - 92 = 292$. The probability is then $292 / 390 = 0.749$.

390 Voters Are Classified by Income and Political Party A) 0749 B) 0

390 Voters Are Classified by Income and Political Party A) 0749
B) 0