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如何在Excel中根据分配的概率生成随机值？

如果存在带有一些值和相应分配百分比的表格，如下表中的屏幕截图所示。 现在，我想根据值列表及其分配的概率生成随机值。
doc随机，概率为1

随机产生随机值

箭头蓝色右气泡 随机产生随机值

实际上，要生成具有概率的随机值，您只需要两个公式。

1.在表的相邻单元格中，键入此公式 = SUM（$ B $ 2：B2），然后将此公式向下拖动到所需的单元格。 看截图：
doc随机，概率为2

2.选择一个将要放置随机值的空白单元格，键入此公式 =INDEX(A$2:A$8,COUNTIF(C$2:C$8,"<="&RAND())+1)， 按 恩特r键。 然后按 F9 键以根据需要刷新值。
doc随机，概率为3

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Comments (19)
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Gabriel
Gabriel
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A formula ta errada... <= altera a P()... Tem que ser < apenas... 

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Kingsley
Kingsley
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You're a life saver.
Thanks a million!
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CUTO
CUTO
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MÌNH KHÔNG HIỂU LẮM. TẠI SAO PHẢI LÀM NHƯ VẬY Ạ?
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Stefano
Stefano
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Ottimo lavoro! Questo è proprio quello che cercavo. Però non funziona con Calc di Open Office, che fra l'altro accetta solo i comandi in italiano.
E' possibile tradurla in modo che funzioni anche con calc? Io non ci sono riuscito.Grazie.

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KYRIACOS
KYRIACOS
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THE FORMULA WORKS ONLY IF ONE SUBSTITUTES RAND() WITH RANDBETWEEN(1;X) WHERE X IS THE TOTAL NUMBER OF POSSIBLE OUTCOMES, WHICH WOULD SIMPLY BY AN INTEGER GREATER THAN 1.
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kyrIACOS
kyrIACOS
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frankly I don't think this formula works.
I am trying to sample the results of an election so I have in a row the votes of different parties. no I want to go in & pick up randomly ten ballots (sort of like exit polling works), but I always get the first party in the rows.
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Preston Ehrsam
Preston Ehrsam
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How can I utilize this random number generator but only have it generate odd or even numbers inside of the criteria? When I add the "ODD" or "EVEN" coding, it only produces the number "1" in the cell.
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Sunny
Sunny     Preston Ehrsam
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Hi, Preston Ehrsam, the Insert Random Data tool cannot insert random even or odd numbers only.
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Chudi
Chudi
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Sorry Just Noticed that I extend the cumulative prob. outside the desired limits
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Chudi
Chudi
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Does this work if the data in the cells are horizontal instead of vertical? Mine is not. Thanks
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Maria
Maria
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Hello, can anyone help me getting the correct formula? I would like to get random values but with certain limits. For example, randomly get "red, blue, green, orange or pink", but I have a specific quantity of items for each color so I have to set this condition within the formula.
Thanks!
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Sunny
Sunny     Maria
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You can try the Insert Random Data to create the custom list as red, blue, green, orange and pink, then insert then to range randomly.
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