1. Types of Events Groups of 3 Pick a Card
You have 10 minutes to come up with a definition and a couple of examples!

2. Mutually Exclusive Events
Events that CANNOT happen together
You are either
LATE or NOT LATE
You can’t be both

3. Mutually Exclusive Events
Events that CANNOT happen together
In a game you either
WIN or LOSE
You can’t do both

4. Mutually Exclusive Events
Events that CANNOT happen together
When you throw a coin, you either get
HEADS or TAILS
You can’t get both on one throw

5. Mutually Exclusive Events
Events that CANNOT happen together
When you throw a dice, you can either get a 1,2,3,4,5 or 6  just one of these!
P(1) = P(2) = P(3) = 1 6
and so on for the other numbers..
P(score of 1 or 2 or 3 or 4 or 5 or 6) =
= 6 6 =1

6. Mutually Exclusive Events
The sum of the probabilities of a set of mutually exclusive outcomes is 1!
P(heads) = P(tails) = = 2 2 =1
P(late) = P(not late) = = 3 3 =1
P(win) = P(lose) = = 1

7. Mutually Exclusive Events
Events that CANNOT happen together
Often it is one ACTION
Throwing a coin
Playing a game
Arriving at work

8. Often two or more Actions
Independent Events
Events that can happen together BUT DO NOT affect each other
Often two or more Actions
Flipping a coin and throwing a dice
Getting a head or a tail has no affect whatsoever on whether I get a 1,2,3,4,5 or 6

9. Quizzes happen rain or shine!
Independent Events
Events that can happen together BUT DO NOT affect each other
Often two or more Actions
Rains today and Quiz during school
Quizzes happen rain or shine!

10. 1st pick (let’s say I pick a red one)
Dependent Events
Events that depend on one another – What happens in the first event affects the outcome of the next event!
Taking out a marble from a bag containing some marbles and not replacing it.
1st pick (let’s say I pick a red one)
In my 2nd pick – the probability of picking a red one is now lower!