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**White_Owl****Member**- Registered: 2010-03-03
- Posts: 106

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: 103,826

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.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,548

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

Children are not defined by school ...........The Fonz

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

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