Mortality within class (per 1000 individuals) = (Deaths in class / Alive at start of class) x 1000
A: 478/1000 x 1000 = 478
B: 137/522 x 1000 = 262.45
C: 64/385 x 1000 = 166.23
D: 89/321 x 100 = 277.25
E: 232/232 x1000 = 1000
10:36 PM Thu Jul 30 58% Exit Age Class #Deaths in class # Alive at start...