sample of 200 denata Ten university was taken after the mid to ask wire they went bu hopping the weekend for the ride or se me weekend studying and whether they did well or poorly on the mide. The following table contains the result Did well in Mida Did Poorly in Mistem Sluiting for 30 20 Want Bar Hopping 30 70 Referring to the table of those who went bar hopping the weekend before the midium is the sample percent of them who did well on the midler DA15 OR 2727 OC 55 0030