Mothers Against Drunk Driving (MADD) is a very visible group whose major focus is to educate the public regarding the harm caused by drunk drivers. A study was recently done that emphasized problem we all face with drinking and driving. Five hundred accidents that occurred on Saturday night were analyzed. Two items noted were number of vehicles involved and whether alcohol played a role in accident. The numbers are shown below:
Number of Vehicles Involved
|
Did alcohol play a role?
|
1
|
2
|
3
|
|
|
Yes
|
60
|
110
|
30
|
200
|
|
No
|
40
|
215
|
45
|
300
|
|
100
|
325
|
75
|
|
Given that alcohol was not involved, what proportion of the accidents involved a single vehicle?