a study was done recently that emphazied the problem of drinking and driving. 400 accidents that occured on a saturday night weere analyzed. two items noted were the number of vehicles involved and whether alcohol played a role. the numbers are yes row 1 58 row 2 93 3 0r more 19 totals 170 , no row 1 28, row 2 180, 3 or more 22, totals 230, totals, row 1 86, row 2, 273 3 or more 41 , totals 400