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The ball is not replaced from where it is picked from. There is always a $5\%$ chance you will pick a red ball.

Is it $0.05\times0.05\times0.05$?

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    Yes. It's a funny selection of balls you have though, such that not replacing one doesn't change the probabilities.2012-08-12
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    @SiliconCelery: It's an infinite ball heat bath :-)2012-08-12
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    haha yes it is funny... I have used different percentages and a different item from the real question. I don't know if I'm allowed to ask questions on here or not... so thought it safest to change the data. The real data is much more realistic.2012-08-12
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    Also specify in advance that the three choices are independent.2012-08-12
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    Ah ok. No problem. Probability is not my strong point. Thank you all for your help.2012-08-12
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    ))) ehehe it is really funny. Everywhere there are some red balls with some probability ohh perhaps some pink ones too!2012-08-12

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