| 謝謝車五進一。題目譯文中漏了幾個字。原文是： |
| 送交者: gugeren 2020月03月21日12:08:34 於 [靈機一動] 發送悄悄話 |
| 回 答: 等差數列公差可以為 0 由 車五進二 於 2020-03-20 21:30:31 |
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Three fair dice are tossed at random (i.e., all faces have the same probability of coming up). What is the probability that the three numbers turned up can be arranged to form an arithmetic progression with common difference one? 所以公差不為0。 最近思想不集中了。 |
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