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find such questions mind boggling!

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by mehaksal » Mon Aug 27, 2012 6:39 am
A and B alternately toss a coin. The first one to turn up a head wins. if no more than five tosses each are allowed for a single game.
1- Find the probability that the person who tosses first will win the game?
2- What are the odds against A's losing if she goes first?
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by mehaksal » Mon Aug 27, 2012 6:41 am
particularly confusing i find the odds in favour and odds against cases...please help...
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by vk_vinayak » Mon Aug 27, 2012 6:49 am
mehaksal wrote:A and B alternately toss a coin. The first one to turn up a head wins. if no more than five tosses each are allowed for a single game.
1- Find the probability that the person who tosses first will win the game?
2- What are the odds against A's losing if she goes first?
Do you have the answers? I calculated the first one and got 341/512 as answer.

P(the person who tosses first will win the game) = 1/2 + 1/(2^3) + 1/(2^5) + + 1/(2^7) + + 1/(2^9)

Let me know if it is correct.
- VK

I will (Learn. Recognize. Apply)
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