# Search Results

### Probability: Envelope-letter matching problem

Suppose we have "n" envelopes and "n" letters and we put letters to envelopes at random. Let I_i = I({i-th letter matches}) =1 if the i-th letter...
Thread by: kingwinner, Jul 12, 2009, 5 replies, in forum: Physics & Math
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### Probability mass function

How about the coin??? By the way, is this a "birvariate" question? How can I define the second random variable?
Post by: kingwinner, Oct 31, 2008 in forum: Physics & Math
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### Probability mass function

Thanks for helping! Valves | | | 1 2 3 | Probability | Paths | ----------+---------------+-------| 0 0 0 |...
Post by: kingwinner, Oct 4, 2008 in forum: Physics & Math
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### Probability mass function

Thanks, but do you have any idea what is going on with the "signal" that the problem talks about twice?
Post by: kingwinner, Oct 1, 2008 in forum: Physics & Math
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### A probability question

Sorry, I don't know tex and I am trying to keep the expressions simple. ^ means "to the exponent of"
Post by: kingwinner, Sep 24, 2008 in forum: Physics & Math
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### Conservative vector fields

Still wondering...
Post by: kingwinner, Mar 25, 2008 in forum: Physics & Math