Question

To investigate whether or not sexism is part of the workplace 48 mail Bank supervisors were each given a personal file and asked to judge whether the person represented in the file should be recommended for promotion or whether the person file should be held the files where identical except half of the files were labeled male and the other half female the data summarized below

Answer 1

3 is a joint frequency
13 is a marginal frequency
21 is a joint frequency