TABLE 4-1
Mothers Against Drunk Driving Is a Very Visible

Multiple Choice

TABLE 4-1
Mothers Against Drunk Driving is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below:
$$\begin{array}{l}\text { Number of Vehicles Involved }\\\begin{array} { l c c c c c } { \text { Did alcohol playa role? } } & 1 & 2 & 3 & \text { Totals } \\\hline \text { Yes } & 50 & 100 & 20 & 170 \\\hline \text { No } & 25 & 175 & 30 & 230 \\\text { Totals } & 75 & 275 & 50 & 400 \\\hline\end{array}\end{array}$$
-Referring to Table 4-1, given that multiple vehicles were involved, what proportion of accidents involved alcohol?

A) 120/400 or 30%
B) 120/170 or 70.59%
C) 120/325 or 36.92%
D) 120/230 or 52.17%