Table 3.64:
Table 18
Calculating
Class: age
Midpoint
Frequency
10.0
83.3
37.4
−27.4
62,538.31
30.0
82.8
37.4
−7.4
4,534.13
50.0
85.6
37.4
12.6
13,589.86
72.5
51.6
37.4
35.1
63,571.72