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**White_Owl****Member**- Registered: 2010-03-03
- Posts: 99

I have a bunch of problems like this:

P(A) = .1

P(B) = .2

P(AUB) = .3

P(A|B) = ?

Some of the problems are really complicated and consist of multiple events (right now the largest one have five, but more is possible).

Is there any tool which knows how to work with probability functions and can construct a new formula upon the given set of known probabilities?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 90,444

Hi White_Owl;

I do not know of any app but there is a site for simple ones.

http://stattrek.com/online-calculator/p … lator.aspx

*Last edited by bob bundy (2013-02-11 11:18:06)*

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,528

<I added an x to make .aspx ... hope that is ok with you ... Bob>

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