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12 balls are keeped in three bags. The p...

12 balls are keeped in three bags. The probability that there are 3 balls in first bag is:

A

`110/9(2/3)^(10)`

B

`110/9(3/2)^(10)`

C

`(.^(12)C_(3))/(3^(12))`

D

`(.^(12)C_(3))/(12^(3))`

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A
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  15. 12 balls are keeped in three bags. The probability that there are 3 ba...

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