# The probability of event #A# occurring is #p#. If #A# doesn't occur, that is event #a#. What is the probability of the following occurring: #A A, aa, Aa#?

##### 1 Answer

Sep 30, 2017

See below:

#### Explanation:

Let's use some numbers first and then generalize. I'll set

The probability of drawing the three different draws are (and I'm assuming order matters and so

We can now generalize using

~~~~~

If order doesn't matter, then we multiply the

and