what is ξ
the universal set
wht is A
Set A
What is A'
Not in set A
What is B
Set B
What is B'
Not in set B
What is A∩B
A and B (the intersection)
What is (A∩B)'
Not A and B
What is A∪B
A or B
What is (A∪B)'
Not a or B
P(A)
The probability of event A happening
P(A')
The probability of event A not happening
p(A∩B)
The probability of A and B happening at the same time
p(A∩B')
The probability of A happening but B NOT happening
p(A∪B)
The probability of A or B happening
p(A'∪B)
The probability of A NOT happening or B happening
P(B|A)
Event B given Event A