Probability Flashcards
1
Q
How do you shade unions in Venn diagrams ie
A’ U B
A
Shade what has been given to you
So shade everything that’s not a and everything that is b
2
Q
How do you shade for intersections in Venn diagrams ie
A’ and B
A
Shade the overlap - where’s it’s not A but it is B
3
Q
What do you do along tree diagrams
A
Multiply
4
Q
What does mutually exclusive mean
A
Can’t happen at the same time
5
Q
What is P (A and B ) for mutually exclusive events
A
0
6
Q
What is P (A U B ) for mutually exclusive events
A
The probability of A + the probability of B
