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    160 - 164 1 165 - 169 16 170 - 174 71 175 - 179 108 180 - 184 83 185 - 189 18 190 - 194 3 What is the upper class limit for the fourth class?upper class limit =

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