Probability Flashcards
1
Q
What does mutually exclusive mean?
A
Cannot happen at the same time.
Eg. Being even and odd
Prime and square
Club and spade
2
Q
What do you do if two events are mutually exclusive?
A
You add them:
P(A or B) = P(A) + P(B)
3
Q
What are independent events?
A
Two events are independent if the outcome of one doesn’t affect the other.
4
Q
What do you do if two events are independent?
A
You multiply them:
P(A and B) = P(A) x P(B)
