# A box contains 3 red balls and 4 green balls. If two balls are randomly selected in sequence, what is the possibility that a red ball and a green ball are picked out of the box?

##### 1 Answer

Feb 26, 2016

There are 3 ways to pick the red ball and 4 ways to pick the green ball for a total number of **events** of

#### Explanation:

There is a total of 7 balls. The **sample space** for the number of ways of choosing two balls is

P(red ball and a green ball)

hope that helped