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Math Help - Expected value of a not-fair coin

  1. #1
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    Expected value of a not-fair coin

    Hi!

    I have a not-fair coin and the expected value to get a "head" is 10 tosses. The question is: What is the probability of getting heads and the probability of getting tails in my not-fair coin?

    Thank you in advanced
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  2. #2
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    Re: Expected value of a not-fair coin

    Do you mean, what is the probability of landing a certain amount of heads from the 10 trials?
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  3. #3
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    Re: Expected value of a not-fair coin

    I got the impression the OP meant that his/her unfair coin would have to be tossed (on average) 10 times before landing on heads once (ie: the first 9 tosses are tails).

    Given that what is the chance of getting of a head with a single toss of this unfair coin.


    @OP: I suck at stats so I'd not know where to start
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  4. #4
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    Re: Expected value of a not-fair coin

    Well then the probability of obtaining heads is 1/10 and tails is 9/10.
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