Probability: the chance that some event will occur.
Plane example: there are 52 passenger seat. There are 4 rows and 13 columns.
What the probability of sitting in:
Window seat ¼
A seat ¼
Even number: 6/13
Procedure: the experiment or action we are taking. Ie// selecting a single seat.
Event: outcomes from that procedure that are of importance to us. Collection of
possible outcomes include the 4 different events we looked at.
Simple Event: outcome that cant be broken down further. For example chances of
getting 7b, there is only one possible seat. Only possible way to get 7b.
Sample space: all possible simple events
Approaches to define probability
1. Classical: each simple even has an equal chance of occurring.
P(x) = number of wway X can occur/number of different sample event
X could be the general label for event (getting seat 7a)
2. Relative Frequency