Probability!!!

So i thought it was about time to write something about what we have been learning for the last month or so.. (We had our test on it last week Thursday).
Probability = sample spaces/complementary events/ independent/ dependent events..

5/8 .625 62.5% 5 chances out of 8

Independent/Dependent Events
It helped to think RESET button or DON'T RESET..
Factorial Notation
-permutation- ordering in which order matters
-combination-ordering doesn't matter
Mutually Exclusive and Inclusive Events
- Exclusive evnets have nothing in common.. p(a) + p(b)
-Inclusive events have things in common... p(a) + p(b)-p(a and b)