David has a collection of 9 grey fingerboards, 4 white fingerboards, and 3 yellow fingerboards.
He chooses one at random. Locate the probability of the following events on the number line.
![David has a collection of 9 grey fingerboards 4 white fingerboards and 3 yellow fingerboards He chooses one at random Locate the probability of the following ev class=](https://us-static.z-dn.net/files/d11/e851b6a1e6df219b9143f5aeee85998c.png)