Mothers 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. Five 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
Yes 60 110 30 200
No 40 215 45 300
100 325 75
What proportion of accidents involved alcohol and a single vehicle?
Place your answer, rounded to 2 decimal places, in the blank. For example, 0.23 is a legitimate entry.
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