Mutually Exclusive means...
...events can't happen at the same time.
Independent means...
...one event has no effect on the other.
You can show Independence by...
...showing P(A) equals (A/B) or by showing the P(A) times the P(B) is equal to the P(A and B)
A tree diagram contains...
...P(A), P(A/B), and the P(A and B)
When finding the P(A or B)...
...consider subtracting any "overlap"
Use the "Multiplication Principle" to...
...find the total outcomes
Complementary events ...
...always add up to 1.
Raining and Not Raining
Complementary Events
None and At Least One
Complementary Events
You can only multiply the P(A) times the P(B) if ...
...the events are independent.