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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: 81,367

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 have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,092

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

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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