Approximate the mean for following GFDT. Data | Frequency 60 - 64 | 1 65 - 69 | 1 70 - 74 | 4 75 - 79 | 4 80 - 84 | 7 85 - 89 | 9 90 - 94 | 13 95 - 99 | 24 100 - 104 | 14 mean = Report answer accurate to one decimal place.
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Step 1:** Calculate the midpoint for each class interval: - Midpoint for 60-64: (60 + 64) / 2 = 62 - Midpoint for 65-69: (65 + 69) / 2 = 67 - Midpoint for 70-74: (70 + 74) / 2 = 72 - Midpoint for 75-79: (75 + 79) / 2 = 77 - Midpoint for 80-84: (80 + 84) / 2 = 82 - Show more…
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