statistics · worked example

Solve {2, 4, 6, 8, 10} 的平均數 — x = 6

Method: 算術平均數. Verified step-by-step solution with our free AI math solver.
Problem

xˉ=1nxi, {2,4,6,8,10}\bar{x} = \frac{1}{n}\sum x_i,\ \{2,4,6,8,10\}

Step-by-step solution

  1. 將各數值相加:2+4+6+8+10=302 + 4 + 6 + 8 + 10 = 30

  2. 計算數值的個數:n=5n = 5

  3. 相除:xˉ=305=6\bar{x} = \frac{30}{5} = 6

Answer

xˉ=6\bar{x} = 6

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