1. ## [SOLVED] binomial

i am not understanding binomial experiments.

and how do you calculate expected value.

do you multiply the X list * the P(x) list.
ok. now that you have the total of that, are you supposed to / by the number of entries?

the calculations of statistics seems easy enough. I am really struggling with what numbers to put where............

2. Originally Posted by nurserascal
i am not understanding binomial experiments.

and how do you calculate expected value.

do you multiply the X list * the P(x) list.
ok. now that you have the total of that, are you supposed to / by the number of entries?

the calculations of statistics seems easy enough. I am really struggling with what numbers to put where............
When you find how the probability when an event happens $\displaystyle n$ (a certain) number of times with a propability $\displaystyle p$ that is called a "binomial experiment" And the formula is,
$\displaystyle { m\choose n}p^n(1-p)^{m-n}$
Where $\displaystyle m$ is the total amount, meaning $\displaystyle n$ happens $\displaystyle n$ out of $\displaystyle m$ times.

3. Originally Posted by nurserascal
i am not understanding binomial experiments.

and how do you calculate expected value.

do you multiply the X list * the P(x) list.