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Forum: Probability 05-14-2005, 04:24 PM
Replies: 3
Views: 88
Posted By carsten
Re: 2 problems strugglin with

Problem 1 does not look well-defined. If you want help with your homework, at least copy the assignments carefully.

In problem 2, we're given a constant density function, hence the task is simply...
Forum: Probability 05-04-2005, 09:15 AM
Replies: 4
Views: 86
Posted By carsten
Re: Density/Distribution Functions

The distribution function D for a random variable X can be used to determine the probability that X lies between any two given bounds Xmin and Xmax by taking the difference D(Xmax)-D(Xmin).

Note...
Forum: Probability 04-30-2005, 02:13 AM
Replies: 3
Views: 83
Posted By carsten
Re: Couple of problems I am struggling with...

[ QUOTE ]

2nd problem is 1 out of 1000 births result in fraternal twins; 1 out of 1500 births result in identical twins. Identical twins must be the same sex while the sexes of fraternal twins...
Forum: Probability 04-29-2005, 08:18 AM
Replies: 5
Views: 87
Posted By carsten
Re: Math behind Mark up %(non poker)

You (or whoever assigned this problem to you) are using a backwards (and in my opinion non-standard) definition of markup. In any context I have encountered, markup is a percentage applied to...
Forum: Probability 04-28-2005, 12:13 AM
Replies: 18
Views: 134
Posted By carsten
Re: Online Algorigthm Debate - Burn Cards

[ QUOTE ]
[ QUOTE ]

I am saying that if I hold AK of spades, there is a definite possibility that 1,2, or 3 spades COULD have been burned and that 1,2,or 3 spades COULD not have been burned. In...
Forum: Probability 04-26-2005, 03:13 PM
Replies: 7
Views: 92
Posted By carsten
Re: 5 Yellow Starbursts with 1 pull

I have no idea if Starburst comes in 4 or 5 flavors, but in any case this response is not exactly correct.

First of all, the probability depends on how many pieces of each flavor you have. For...
Forum: Probability 04-25-2005, 08:13 PM
Replies: 3
Views: 71
Posted By carsten
Re: Odds for a flush

This is a classic example for an "outs" calculation: Of the 47 unseen cards, 9 are outs that will make your flush. A good rule of thumb for the probabilty of hitting at least one out is the 2/4 rule:...
Forum: Probability 04-25-2005, 01:22 PM
Replies: 18
Views: 134
Posted By carsten
Re: Online Algorigthm Debate - Burn Cards

Anyone that still doubts the assertion that the probability after burning is still 1/29 should consider the following. Either the A /images/graemlins/spade.gif is burned or it's not. If it is burned,...
Forum: Probability 04-24-2005, 08:43 PM
Replies: 11
Views: 126
Posted By carsten
Re: what are the odds

I'll assume you want me to clarify why (44 choose 5) = (44*43*42*41*40)/(5*4*3*2*1).

You are correct in stating that (44 choose 5) = 44!/(39!*5!). Now observe that you can write 44! as...
Forum: Probability 04-24-2005, 01:17 AM
Replies: 11
Views: 126
Posted By carsten
Re: what are the odds

See http://mathworld.wolfram.com/BinomialCoefficient.html, but don't try to read past equation number (1) if you have a weak stomach /images/graemlins/wink.gif

What it means on your calculator...
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