The table shows the results of four surveys that randomly sampled 30 teenagers about their favorite night to hang out with friends. friday saturday sunday total survey 1 9 14 7 30 survey 2 11 13 6 30 survey 3 10 14 6 30 survey 4 7 5 18 30 identify surveys that are likely biased. based on the unbiased surveys, what percent of the teenagers are likely to prefer hanging out with their friends on saturday night? 21 % 34 % 38 % 46 %