Question 1202691
n = 7
x = 0 to 7
p(x) = p^x * q^(n-x) * c(n,x).
the excel spreadsheet shows the calulations.


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for example:


p(x = 3) = .4^3 * .6^4 * c(7,3) which is equal to .4^3 * .6^4 * 35 which is equal to  .290304


c(7,3) = 7! / (3! * 4!) = (7*6*5*4!) / (3! * 4!) which is equal to (7*6*5) / (3*2*1) which is equal to 35.


p(x < 3) is equal to p(0) + p(1) + p(2)
p(x > 3) is equal to p(4) + p(5) + p(6) + p(7)