7. 由 1、2、3、…、20 挑出x1，x2，x3三個數，且x1 &lt; x2 &lt; x3；求x1與x2至少差 4，x2與x3 至 少差 5 的機率為____

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【站僕】摩檸Morning.

詳解 #1703119

2015/05/11

(共 1 字，隱藏中）

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(Translation) 2. Translate the following passage into Chinese. (5%) The origin of decoupage is thought to be East Siberian tomb art. Nomadic tribes used cut out felts to decorate the tombs of their deceased. From Siberia, the practice came to China, and by the 12th century, cut out paper was being used to decorate lanterns, windows, boxes and other objects. In the 17th century, Italy, especially Venice, was at the forefront of trade with the Far East and it is generally thought that it is through these trade links that the cut out paper decorations made their way into Europe.

7. 由 1、2、3、…、20 挑出x₁，x₂，x₃三個數，且x₁ < x₂ < x₃；求x₁與x₂至少差 4，x₂與x₃ 至少差 5 的機率為____

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7. 由 1、2、3、…、20 挑出x1，x2，x3三個數，且x1 < x2 < x3；求x1與x2至少差 4，x2與x3 至 少差 5 的機率為____

詳解 (共 1 筆)

相關申論題

相關試卷

7. 由 1、2、3、…、20 挑出x₁，x₂，x₃三個數，且x₁ < x₂ < x₃；求x₁與x₂至少差 4，x₂與x₃ 至少差 5 的機率為____