Posted by nathalie on Tuesday, May 22, 2012 at 3:52am.
Here's one way to do this problem:
n = 5
p = .25
q = 1 - p = 1 - .25 = .75
You can do this: you can find P(0) and P(1), add both values together, then subtract from 1.
You can use a binomial probability table, or calculate by hand using the following formula:
P(x) = (nCx)(p^x)[q^(n-x)]
I hope this will help.
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