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Solve ค่าเฉลี่ยของ {5, 10, 15, 20} — x = 12.5

Method: ค่าเฉลี่ยเลขคณิต. Verified step-by-step solution with our free AI math solver.
Problem

xˉ, {5,10,15,20}\bar{x},\ \{5, 10, 15, 20\}

Step-by-step solution

  1. ผลรวม: 5+10+15+20=505 + 10 + 15 + 20 = 50

  2. นับ: n=4n = 4

  3. ค่าเฉลี่ย: xˉ=50/4=12.5\bar{x} = 50 / 4 = 12.5

Answer

xˉ=12.5\bar{x} = 12.5

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