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601 观看416quiz3298原视频发布: 2026-04-26

The average of a set of numbers is calculated by summing all the numbers and dividing by the count of numbers. For the first 5 natural numbers (1, 2, 3, 4, 5), the sum is 15, so the average is 15 ÷ 5 = 3. For the numbers 20, 30, 40, 50, and 35, the sum is 175, so the average is 175 ÷ 5 = 35.

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