Along with the salaries for the 400 professors in Example 3.1, the researcher recorded two qualitative variables for each professor: rank and faculty. Table 3.2 shows the number of professors in each of the 2 3 = 6 categories. Use comparative charts to describe the data. Do the faculties of science employ as many high-ranking professors as the faculties of arts do?

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Number of Professors by Rank and Faculty Arts Science Full Associate Professor Professor Assistant Professor Total 28 24 57 69 150 60 78 112 250