1
Q
Conditional probability formula
A
P(A|B) = P(A∩B) / P(B)
2
Q
State the addition rule
A
When A and B are mutually exclusive events:
P(A∪B) = P(A) + P(B)
3
Q
State the multiplication rule
A
If A and B are independent events:
P(A∩B) = P(A) * P(B)
4
Q
Give the law of total probability
A
When A1, A2, …, Ak mutually exclusive and exhaustive events:
Pr(B) = Σ(i=1 to k) Pr(B|Ai) * Pr(Ai)
5
Q
Formula for coefficient of variation
A
CV(X) = sqrt(Var(X)) / E(X)
