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Results tagged with pr.probability
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user 5484
Theory and applications of probability and stochastic processes: e.g. central limit theorems, large deviations, stochastic differential equations, models from statistical mechanics, queuing theory.
4
votes
Google question: In a country in which people only want boys
A colleague, Eugene Salamin, came up with what I would consider the "Book" solution:
Phooey, this isn't at all a mathematical puzzle. A social convention cannot
override biology, so the proportion …
- 2,858
3
votes
A problem of an infinite number of balls and an urn
The reason this problem has the generally accepted answer of 0 balls in the jug at midnight -- among mathematicians -- is that for any given ball, one may follow its itinerary: at some point it goes i …
- 2,858
3
votes
0
answers
176
views
What is the expected size of the complement of the union of random cosets of the prime ideal...
For each rational prime $p$ let $\mathbf{X}_p$ denote the random variable uniformly distributed in $\{0, 1, ..., p-1\}$, with all the $\mathbf{X}_p$ independent of each other. Define the coset $\mathb …
- 2,858
0
votes
Google question: In a country in which people only want boys
The correct answer has nothing to do with the number of families. This is a very tricky problem, and many people fall into the trap of trying to average each possible fraction of girls, weighted only …
- 2,858