1. ## Bumping probability

If Juanita bumps into Troy in the hallway between periods 2 and 3, there is a 25% chance that she will be late. If she does not bump into Troy, she will make it to class on time. If there is a 20% chance that Juanita will bunp into Troy. How likely it is that she will be late on any given day?

Thank u

2. There is a $\frac{1}{5}$ chance that she will hit Troy and then a $\frac{1}{4}$ chance that she will actually be late.

So multiply $\frac{1}{4} \cdot \frac{1}{5} = \frac{1}{20}$

3. Originally Posted by Runes
If Juanita bumps into Troy in the hallway between periods 2 and 3, there is a 25% chance that she will be late. If she does not bump into Troy, she will make it to class on time. If there is a 20% chance that Juanita will bunp into Troy. How likely it is that she will be late on any given day?

Thank u
(.2)(.25) Just multiply them they are independent events.