• TABLE 1Mothers Against Drunk Driving (MADD) 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:

  	Number of Vehicles Involved
  Did alcohol play a role?	1	2	3	Totals
  Yes	50	100	20	170
  No	25	175	30	230
  Totals	75	275	50	400

  Referring to TABLE 1, what proportion of accidents involved alcoholanda single vehicle?

245/400 or 61.25%

195/400 or 48.75%

50/400 or 12.5%

25/400 or 6.25%