Probability Flashcards
(6 cards)
1
Q
What does mutually exclusive mean?
A
When the events have no outcomes in common
2
Q
What does independent mean?
A
When one event has no effect on another
3
Q
How are mutually exclusive events represented?
A
P( A or B) = 0
So P(A) + P(B) = P(A or B)
- no overlap/intersections
4
Q
How are independent events represented?
A
P( A and B) = P(A) x P(B)
*intersection of A and B equals the circles of A and B
5
Q
What does Union (U) mean?
A
‘Or’ so it is inclusive
A U B
A union B
Includes everything in circle A and B
6
Q
What does intersection (n) mean?
A
‘And’
A n B
Includes the intersection of circle A and B
