Forum: Probability
12-21-2005, 11:12 PM
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Replies: 3
Views: 815
Re: bump
Close enough.
1. In principle, you shouldn't decide on an interval size first, and determine n later, on the fly. Instead, determine a (large) sample size first, then construct the interval. But...
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Forum: Probability
12-21-2005, 11:06 PM
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Replies: 21
Views: 1,513
Re: Math Degrees and Careers
It sounds like MathEcon and I have similar backgrounds, so not surprisingly I agree with almost everything he said. However, I would not call first year classes 'easy' at any top 15 program. They...
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Forum: Probability
12-21-2005, 12:37 PM
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Replies: 21
Views: 1,513
Re: Math Degrees and Careers
Looks like most have been covered; the thing about Economics and Comp Sci is that there is a huge disconnect between undergrad and grad. As undergrad majors, they are more broad in preparing people...
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Forum: Probability
12-21-2005, 12:20 PM
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Replies: 3
Views: 686
Re: This forum needs a sticky
A sticky for FAQ's would be a good idea. The simplest would be to provide links to previous threads that discuss:
combinations/permutations
inclusion-exclusion
various ROR threads
Monty...
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Forum: Medium Stakes Hold'em
12-19-2005, 12:28 PM
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Replies: 47
Views: 1,577
Re: KJs in the monkey house
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I like your analogy, well done!
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But this doesn't make sense (at least to me). I understand all of Bernie's last few posts, but none of yours, after the Pstove post.
...
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Forum: Medium Stakes Hold'em
12-07-2005, 12:45 PM
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Replies: 6
Views: 388
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Forum: Medium Stakes Hold'em
12-01-2005, 12:39 PM
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Replies: 31
Views: 903
Re: J6s -- play along with me
I was also confused by the first comments about position, relative to the aggressives...
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First to act after the flop with a "stereotypically aggressive" BB and a...
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Forum: Probability
11-22-2005, 01:00 PM
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Replies: 4
Views: 201
Re: Quck counting question
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P(x) = ( C(11,2) * (50 - 11) ) / C(50,3)
[/ QUOTE ]
Yes, look up the hypergeometric distribution for further info.
Your answer is equivalently ( C(11,2) * C(39,1) ) / C(50,3)
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Forum: Probability
11-17-2005, 01:07 PM
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Replies: 3
Views: 164
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Forum: Mid- and High-Stakes Hold'em
11-17-2005, 02:25 AM
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Replies: 7
Views: 174
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Forum: Probability
11-14-2005, 02:42 PM
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Replies: 10
Views: 495
Re: Guess WHO game. Dominated by a little girl!
This is an interesting question. Binary search minimizes average search time, but in a 2-player game like this, one should be more concerned with median type statistics than EV type stats. It is...
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Forum: Probability
11-10-2005, 01:39 AM
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Replies: 6
Views: 154
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Forum: Probability
11-05-2005, 11:37 AM
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Replies: 10
Views: 267
Re: The tennis serve problem
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What do you mean by benefit/payoff? Lets just assume you get a dollar for every mph of your fastest of the three serves. You get 3 serves, regardless of whether previous serves are...
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Forum: Probability
11-03-2005, 06:03 PM
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Replies: 10
Views: 267
Re: The tennis serve problem
We need to know the benefit (payoff) of having a successful serve of X mph for any X, and also the payoff of having no successful serve.
After that, it's a simple backwards induction computation. ...
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Forum: Probability
11-01-2005, 01:50 PM
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Replies: 6
Views: 561
Re: Beating online Bacarrat?
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I've read about that before, but the systems they are using are meant for LIVE play. My post was targeting the online environment where a computer could be used to count all cards with an...
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Forum: Probability
10-28-2005, 07:14 PM
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Replies: 5
Views: 206
Re: Solving for standard deviation
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My problem is that I'm solving for the standard deviation of one HAND, but then trying to use that to find the standard deviation of a hundred WAGERS
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Yes, and that's what...
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Forum: Probability
10-28-2005, 11:42 AM
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Replies: 3
Views: 167
Re: Minimum variance portfolio...
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I can figure out the total variance of the portfolio given % of each security. I'm hoping there is a general way to do this, as I've never been a calculus freak.
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Do...
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Forum: Probability
10-28-2005, 11:35 AM
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Replies: 5
Views: 206
Re: Solving for standard deviation
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I've always used WoO's value of 1.16 s.d. on blackjack to find the standard deviation of 100 bets by doing 1.16*sqrt(bets). Does this 1.16 account for the covariance, or is it just an...
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Forum: Probability
10-26-2005, 07:27 PM
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Replies: 25
Views: 348
Re: Riddle -- Probability of Expectation
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The chance of all 3 letters occurring in the same 36-character line is
0.756331278146836^3 = 0.432649477099284
[/ QUOTE ]
The occurrence of letters are not independent events. ...
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Forum: Probability
10-26-2005, 11:51 AM
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Replies: 8
Views: 254
Re: If I wanted to shuffle 8 decks of cards
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And I decided to this shuffle by picking two random cards from the 8 decks ans swapping their position, how many iterations would I need to have a properly shuffled 8 decks of cards?
Is...
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Forum: Probability
10-26-2005, 11:44 AM
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Replies: 3
Views: 238
Re: Random points on a circle
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For part b:
Okay, after thinking about it, common sense tells me that the correlation is -1, since they have a decreasing linear relationship... right? But how can I formalize this into a...
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Forum: Probability
10-25-2005, 01:23 PM
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Replies: 3
Views: 238
Re: Random points on a circle
Hints only:
You have (a) right.
There is an easier way to do (b). What does common sense tell you the answer is? (If you can't figure out the easier way, you could still use your method and...
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Forum: Probability
10-24-2005, 11:34 AM
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Replies: 6
Views: 205
Re: Blood testing for disease in groups
Did you try the question yourself first? If there is an exam in this class, you'll not benefit from just reading the answer on a forum. You have to learn the thought process that goes with it.
A...
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Forum: Science, Math, and Philosophy
10-23-2005, 05:55 PM
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Replies: 1
Views: 140
Re: Another One Card Game Theory Problem
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3. How large a card would we have to give B to give him an edge. (If there was no draw it would be .67. See why?)
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I'll go with (1+sqrt(2))/3 =~ .805 until someone claims...
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Forum: Mid- and High-Stakes Hold'em
10-23-2005, 02:56 PM
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Replies: 17
Views: 179
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