Home/Mathematics/Set 85 — Statistics — Mean from Grouped Data

Set 85 — Statistics — Mean from Grouped Data

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Statistics — Mean from Grouped Data

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WAEC 2019

Find the mean of this frequency distribution: Scores 10-19: f=5; 20-29: f=8; 30-39: f=12; 40-49: f=10; 50-59: f=5. Use midpoints.