Miles 發問時間: 社會與文化語言 · 1 0 年前

英文的統計題 請幫忙翻譯一下 (不要翻譯網的喔)

55. A machine shop has 100 drill presses and other machines in constant use. The probability that a machine will become inoperative during a given day is 0.002.

During some days no machines are inoperative, but during some days, one, two, three or more are broken down.

What is the probability that fewer than two machines will be inoperative during a particular day?

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  • 1 0 年前
    最佳解答

    55. A machine shop has 100 drill presses and other machines in constant use. The probability that a machine will become inoperative during a given day is 0.002.

    有一家機械店有100台錐子壓鑄機和其他機器經常在使用。在一個假設的日子,一台機器無法運作(壞掉)的機率是0.02。

    During some days no machines are inoperative, but during some days, one, two, three or more are broken down.

    在某些日子裡,沒有機器壞掉,但是在某些日子裡,一台,兩台,三台或更多的機器壞掉。

    What is the probability that fewer than two machines will be inoperative during a particular day? 在某一個特定的日子,少於2台機器會故障的機率是多少?

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