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Math Help - probability distributions

  1. #1
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    probability distributions

    A coin is tossed 8 times. Calculate the probability of tossing
    a) 6 heads and 2 tails
    b) 7 heads and 1 tail
    c) at least 6 heads
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  2. #2
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    Quote Originally Posted by shell View Post
    A coin is tossed 8 times. Calculate the probability of tossing
    a) 6 heads and 2 tails
    b) 7 heads and 1 tail
    c) at least 6 heads
    c. \sum\limits_{k = 6}^8 {\binom{8}{k}\left( {0.5} \right)^8 }
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  3. #3
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    Thank you for your help. But I am really struggling with this concept... do I use that equation for a) and b) also?
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    Quote Originally Posted by shell View Post
    Thank you for your help. But I am really struggling with this concept... do I use that equation for a) and b) also?
    What do you understand about binomial distributions?
    That is after all what this question is all about.
    Your textbook should contain a complete explication of that topic.
    If you need more, see this.
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