Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarized in the GFDT below.
Lengths (mm) Frequency
80 - 89 1
90 - 99 16
100 - 109 71
110 - 119 108
120 - 129 83
130 - 139 18
140 - 149 3
What is the lower class boundary for the first class?
class boundary =
