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# five fair dice are rolled. what is the probability of having

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SVP
Joined: 03 Feb 2003
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five fair dice are rolled. what is the probability of having [#permalink]  24 Jun 2003, 23:59
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five fair dice are rolled. what is the probability of having EXACTLY 3 threes?

This is a series of easy questions as BB asked me to post.
SVP
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Kudos [?]: 84 [0], given: 0

[#permalink]  25 Jun 2003, 06:02
I think i have forgotten to multiply it by 5C3=10
Manager
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Re: PS: PROBABILITY8 [#permalink]  25 Jun 2003, 09:45
I agree, combine the two previous responses
SVP
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[#permalink]  28 Jun 2003, 11:47
a particular situation 333XX = 1/6*1/6*1/6*5/6*5/6

th enumber of such sutuations is 5C3=10

10*5*5/6^5

Last edited by stolyar on 29 Jun 2003, 23:03, edited 1 time in total.
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[#permalink]  29 Jun 2003, 12:10
Should the answer not be:

10*5*5 125
---------- = -----
6*6*6*6*6 3888

stolyar wrote:
a particular situation 333XX = 1/6*1/6*1/6*5/6*5/6

th enumber of such sutuations is 5C3=10

10*5*5 0000125
---------- = -----
6*6*6*6 ))) 648
[#permalink] 29 Jun 2003, 12:10
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# five fair dice are rolled. what is the probability of having

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