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M08-21

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Intern
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Joined: 09 Oct 2017
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Re M08-21  [#permalink]

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New post 17 Jan 2019, 08:12
I think this is a high-quality question and I agree with explanation.
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Joined: 14 Oct 2018
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Schools: Stanford '21 (S)
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Re: M08-21  [#permalink]

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New post 13 Apr 2019, 06:29
I came up with a generalized sum of dice probability rule based on this problem:

Probability of rolling a sum of x with n # of rolls

P(x) = P(7n - x)

e.g.

3 rolls

P(3) = P(18)


2 rolls

P(3) = P(11)
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Re: M08-21   [#permalink] 13 Apr 2019, 06:29

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