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:

-Referring to Table 4-1, given that alcohol was not involved, what proportion of the accidents were single vehicle?
A) 50/75 or 66.67%
B) 25/230 or 10.87%
C) 50/170 or 29.41%
D) 25/75 or 33.33%

Question

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:
 
-Referring to Table 4-1, given that alcohol was not involved, what proportion of the accidents were single vehicle?
A) 50/75 or 66.67% 
B) 25/230 or 10.87% 
C) 50/170 or 29.41% 
D) 25/75 or 33.33%

Quizplus · Accepted Answer

To find the proportion of single vehicle accidents when alcohol was not involved, we look at the row where alcohol was not involved (230 accidents) and find the proportion of accidents that involved only one vehicle (25 accidents). This gives us 25/230 or approximately 10.87%. Therefore, the correct answer is B.

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