An intuitive introduction of Probability_Prof.Karl Schmedders #Week2

Conditional Probability

P(A|B) : the conditional probability of A given B

 

Multiplication Rules

P(A교집합B) = P(B) * P(A|B)

 

Independence

P(A) = P(A|B) and P(B) = P(B|A)

P(A교집합B) = P(A) * P(B)

 

Probability Tables

To structure the Probability

Marginal Probability(주변확률)

Joint Probability(결합확률)

 

Bayes Rule

We "flipped" conditional probability

P(A|B) * P(B) = P(B|A) * P(A)

즉, P(A|B) = (P(B|A)*P(A))/P(B)