7 Show that the contingency table in Table 8.24 has four degrees of freedoin, by filling in the missing cell counts TABLE 8.24 10 20 30 40 50 50 TABLE 8.25 100 88 60 Cigaretic Use Yes No Alcohol Yes Use Source. 1449 500 No 46 281 80 70 Study conducted by Wright State University School of Medicine and United Health Services, Dayton, Ohio Thanks to Professor Harry Khamis for providing these data