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Math Help - Please help me with this probabilty question

  1. #1
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    Arrow Please help me with this probabilty question

    A Blum-Blum-Shub random number generator produces a string of random bits. A bit is random if the probability of it being 0 or 1 is 1/2 . Letís assume a random bit number is generated.
    a.What is the probability that a string with all 1ís is generated.
    b. What is the probability that a string with k 1ís is generated.
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  2. #2
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    Quote Originally Posted by aravindchow3 View Post
    A Blum-Blum-Shub random number generator produces a string of random bits. A bit is random if the probability of it being 0 or 1 is 1/2 . Letís assume a random bit number is generated.
    a.What is the probability that a string with all 1ís is generated.
    b. What is the probability that a string with k 1ís is generated.
    How long is the string meant to be?
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