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seen Jul 30 at 18:12

Feb
22
awarded  Yearling
Aug
11
revised How to integrate a Wiener process that freezes at a determined time?
Fixed typos
Aug
11
suggested suggested edit on How to integrate a Wiener process that freezes at a determined time?
Aug
7
comment Sum of two stopping times is a stopping time?
There's a typo in the union index, $s$ should be $r$. Other than that I like this answer, because it works also for filtrations that are not necessarily right-continuous and it uses only one auxiliary rational number index.
Jul
25
revised Conditional expectation proof using definition
added 23 characters in body
Jul
25
answered Conditional expectation proof using definition
Jul
24
comment You roll a die until the sum of all your rolls is greater than 13. What number are you most likely to land on, on the last roll?
Did you mean to ask which of the numbers $14, 15, \dots, 19$ is most likely to be the final sum when the game ends? Then of course $14$ is the answer since it is always one of the possible outcomes, if the next roll has a chance to end the game. Sorry for possibly misunderstanding your question initially.
Jul
23
comment You roll a die until the sum of all your rolls is greater than 13. What number are you most likely to land on, on the last roll?
If your next roll has a chance to push your sum over 13, then 6 is always one of the outcomes that will do it. Therefore 6 is most likely to be your last roll when you start the game.
Jul
16
comment Probability brainteaser
@EmanuelePaolini Why would you ever pay two dollars to play a game where you can only win one dollar? In this game you will either lose one or three dollars, if you pay two to play.
Jun
1
reviewed No Action Needed Simplifying a quotient of complex numbers
Jun
1
comment Implications between $\mathbb P [\tau < \infty] =1 $ and $\tau \in L_1 (\mathbb P)$
You've identified one problem with your reasoning, but even if that inequality were true I don't see how it would prove that $\tau$ is finite with probability one.
May
26
revised A basic probability doubt on independence
Corrected a typo
May
26
suggested suggested edit on A basic probability doubt on independence
May
5
comment Naive question about probability
@par It's perfectly standard practice to assume a uniform distribution, if one isn't explicitly given.
Apr
27
awarded  Commentator
Apr
27
comment Probability theory problem
Sorry, @Alex, but this is not correct. The correct answer is found after applying Bayes' theorem, but I don't think anyone should give this question a complete answer since it seems to be a verbatim copy of homework and a sloppy one at that.
Apr
21
revised Change of differentation and integration signs.
Corrected spelling and improved formatting
Apr
21
suggested suggested edit on Change of differentation and integration signs.
Apr
12
answered minimal infinite sigma algebra
Mar
31
reviewed No Action Needed $\sigma$-algebra generated by one-point sets