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#1 2012-11-21 14:35:51

jacks
Member
Registered: 2012-11-21
Posts: 80

dice probability

A six faced fair dice is thrown until 1 comes, then the probability that 1 comes in even no. of trials is

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#2 2012-11-21 22:02:01

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,485

Re: dice probability

Hi jacks;

I am getting

So the probability is 5 / 11.

This agrees with computer simulations.


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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#3 2012-11-24 15:19:41

jacks
Member
Registered: 2012-11-21
Posts: 80

Re: dice probability

Thanks bobbym

would you like to explain it to me

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#4 2012-11-24 15:38:04

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,485

Re: dice probability

Hi;

It is based on a tree and trick for summing series like that. What part do you need help on?


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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