probability of coin toss

I am having a difficult time trying to figure what is the best method to calculate the probability of a number of unbiased coin tosses.

Example: What is the probability of tossing 90 heads out of 100 coin tosses?

Any insight would be greatly appreciated!
Nick
.

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  • Re: probability of coin toss
    ... What is the probability of tossing 90 heads ... out of 100 coin tosses? ...
    (sci.stat.math)
  • Re: probability of coin toss
    ... Subject: probability of coin toss ... I am having a difficult time trying to figure what is the best method to calculate the probability of a number of unbiased coin tosses. ...
    (sci.stat.math)