diff --git a/education/statistics/Probability.md b/education/statistics/Probability.md
index b8290dd..32ff7ed 100644
--- a/education/statistics/Probability.md
+++ b/education/statistics/Probability.md
@@ -20,14 +20,25 @@ $p(h)$ is the mathematical shorthand for something happening, in this case $p(h)
 ## Independent Events
 If the chance of a second event does not change depending on the outcome of the first event, an event is considered independent. An example of this might be drawing from a deck of cards, then replacing the card.
 
-To find the probability of two independent events taking place, you can multiply the probability of those events together.
-
 This is also known as unconditional chance.
+
+To find the probability of two independent events taking place, you can multiply the probability of those events together.
+```
+p(a) * p(b) = p(both a and b taking place)
+``` 
+
+To find the probability of one event or another event taking place, you can add the probability of those two events together
+```
+p(a) + p(b) = p(a or b taking place)
+```
+
 ## Dependent Events
 If an event is influenced by other events, it is considered dependent. An example of this might be drawing from a deck of cards, not replacing, then drawing again.
 
 This is also known as conditional chance.
 
+### Mutually Exclusive Events
+Mutually exclusive events are events that cannot both occur within a given set of measurements. An example of this might be flipping a coin and getting both heads and tails on the same toss. You can only add the chance of two events together if the events are mutually exc
 
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