A Study Was Recently Done That Emphasized the Problem We $\quad$

Multiple Choice

A study was recently done that emphasized the problem we all face with drinking and driving. Four hundredaccidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehiclesinvolved and whether alcohol played a role in the accident. The numbers are shown below. Given that anaccident involved multiple vehicles, what is the probability that it involved alcohol? $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Number of Vehicles Involved }$
$\begin{array} { r | c c c | c } \text { Did Alcohol Play a Role? } & 1 & 2 & 3 \text { or more } & \text { Totals } \\\hline \text { Yes } & 55 & 94 & 21 & 170 \\\text { No } & 25 & 170 & 35 & 230 \\\hline \text { Totals } & 80 & 264 & 56 & 400\end{array}$

A) $\frac { 23 } { 64 }$
B) $\frac { 23 } { 80 }$
C) $\frac { 3 } { 8 }$
D) $\frac { 21 } { 400 }$