120 psychology students took a standardized test. The scores are summarized in the GFDT below.       Scores          Frequency    160 - 179 11 180 - 199 20 200 - 219 10 220 - 239 15 240 - 259 16 260 - 279 48

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.1: Measures Of Center
Problem 8PPS
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120 psychology students took a standardized test. The scores are summarized in the GFDT below.

      Scores          Frequency   
160 - 179 11
180 - 199 20
200 - 219 10
220 - 239 15
240 - 259 16
260 - 279 48



The scores are also described in the cumulative table shown below.

      Scores          Frequency   
less than 180 11
less than 200 31
less than 220 41
less than 240  
less than 260 72
less than 280 120



What is the missing value in the cumulative GFDT?

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