Probability Flashcards
1
Q
If A and B are Mutually Exclusive what is P(AnB) ?
A
P(AnB) = 0
2
Q
If A and B are Mutually Exclusive what is P(AuB) ?
A
P(AuB) = P(A) + P(B)
3
Q
What does the venn diagram looks like for mutually exclusive events?
A
doesn’t overlap / no intersection because they do not rely on each other
cant happen at the same time!!
4
Q
If A and B are Independent what is P(AnB) ?
A
P(AnB) = P(A) * P(B)
5
Q
If A and B are Independent what is P(A I B) ?
A
P(A I B) = P(A)
6
Q
Can you tell whether an event is independent from its venn diagram ?
A
NO
7
Q
Conditional Probability: P(B I A)
A
P(AnB) / P(A)
