Question: 1. The arithmetic mean (use both short method and long method) N 2. The mode 3. Variance (use both short method and long method) 4

1. The arithmetic mean (use both short method and long method) N 2. The mode 3. Variance (use both short method and long method) 4 Standard deviation 5. Coefficient of variation Class 0-4 5-9 192 10- 14 280 15- 19 105 20-24 m 25 - 29 Total 680

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