120 psychology students took a standardized test. The scores are summarized in the GFDT below.       Scores          Frequency    120 - 129 11 130 - 139 11 140 - 149 11 150 - 159 13 160 - 169 14 170 - 179 60 The scores are also described in the cumulative table shown below.       Scores          Frequency    less than 130 11 less than 140 22 less than 150 33 less than 160   less than 170 60 less than 180 120 What is the missing value in the cumulative GFDT?

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