Refer to Page 13. The calculation consists of adding 1.62 + 11.15 = 12.77 divided by 2 = 6.4 (rounded to 1 decimal point).

(Calculation: (129+1160)/(104+58) = 1289/162 = 7.956)

pg. 11

"blue-collar workers (male) Total : 104

white-collar workers (male) Total : 58"

pg. 13

"Total hours of training

white-collar workers (male) : 129

blue-collar workers (male) : 1160"