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What is the missing value in GFDT n psychology students took a standardized test. The scores are summarized in the GFDT below. Scores Frequency 220

What is the missing value in GFDT

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n psychology students took a standardized test. The scores are summarized in the GFDT below. Scores Frequency 220 - 229 10 230 - 239 10 240 - 249 18 250 - 259 260 - 269 18 270 - 279 49 The scores are also described in the cumulative table shown below. Scores Frequency less than 230 10 ess than 240 20 less than 250 38 less than 260 53 less than 270 71 less than 280 n What is the missing value in the GFDT? answer =

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