Probability Flashcards
(5 cards)
1
Q
Independent if…
A
P(A∩B) = P(A) X P(B)
P(A|B) = P(A)
2
Q
Mutually exclusive if…
A
P(A∩B) = 0
P(A∪B) = P(A) + P(B)
3
Q
Probability addition rule
A
P(A∪B) = P(A) + P(B) - P(A∩B)
4
Q
3 events all mutually exclusive
A
P(A∪B∪C) = P(A) + P(B) + P(C) - P(A∩C) - P(B∩C)
5
Q
when probability missing in middle section of venn diagram?
A
add up all frequencies for all events (including none) - the total frequency
