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The test scores of 40 students are summarized in the frequency distribution below. Find the mean. Score Students 50-under60 11 60-under 70 70-under 80

The test scores of 40 students are summarized in the frequency distribution below. Find the mean. Score Students 50-under60 11 60-under 70 70-under 80 SO-under 90 90-under 100 85.25 13.8 72.25 15.2 8957

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