Venn Diagrams and Mutually Exclusive Events Flashcards
1
Q
What does P(A) mean? (venn diagrams)
A
Everything in circle A
2
Q
What does P(A’) mean? (venn diagrams)
A
Everything not in circle A
3
Q
What does P(A or B or Both) mean? (venn diagrams)
A
Everything within the two circles
4
Q
What does P(A n B) mean? (venn diagrams)
A
The middle section
5
Q
What is P(A u B)? (venn diagrams)
A
P(A) + P(B) - P(A n B)
6
Q
What is P(A n B)? (venn diagrams)
A
P(A) X P(B)
7
Q
What is an independent event?
A
A doesn’t affect the likelihood of B happening and vice versa
P(AnB) = P(A) x P(B)
8
Q
What is a mutually exclusive event?
A
When A cannot happen at the same time as B - P(A n B) = 0
9
Q
What does P(A|B) mean? (venn diagram)
A
probability of A given B
10
Q
What does P(A|B’) mean? (venn diagram)
A
probability of A given not B
