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April 18, 2015

Posted by **Rosalyn** on Thursday, July 28, 2011 at 3:43pm.

- statistics -
**MathGuru**, Thursday, July 28, 2011 at 5:18pmUse the binomial probability function:

P(x) = nCx(p^x)[q^(n-x)]

n = 20

x = 10

p = 0.45

q = 1 - p = 0.55

Substitute into the function and go from there.

Note:

You can also use a binomial probability function table with the values listed to find the probability as well. It is an easier way of doing this problem.

I hope this will help get you started.

- statistics -
**LOL**, Friday, June 22, 2012 at 9:05amTHis answer is wrong

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