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#1 2011-12-18 21:01:51

jonny
Guest

urn probability

an urn contain 10 white, 3black balls and another urn contain 3white ,5 black balls

2 balls are drawn from first and put into the second urn then a ball is drawn from second then find

probability that it is white balls

answer= 59/130

#2 2011-12-18 21:09:50

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: urn probability

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#3 2011-12-19 17:58:04

jonny
Guest

Re: urn probability

thank bobbym got it

#4 2011-12-19 18:17:32

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: urn probability

Hi juan;

Okay, glad to help.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

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