Question

Binomial Probability. PLZ HELP!!

Answer 1

\[\sum_{k = 0}^{4} \left(\begin{matrix}11 \\ k\end{matrix}\right) (0,35)^k.(0,65)^{11-k}\]

Answer 2

? what? i don't understand what that means.

Answer 3

In your problem you succeed up to 4 times. So you just have to use the data on the cumulative distribution function of the binomial model. Try this:
http://en.wikipedia.org/wiki/Binomial_distribution

Answer 4

so it's supposed to look like this?
\[(\frac{ 11 }{ 0 })0.35^0(1-0.35)^{11-0}\]