Kategorier: Alla - probability - subtraction - multiplication - complement

av Maiya Farmer för 8 årar sedan

431

Rules of Probability Distribution

Probability rules are essential for calculating the likelihood of occurrences in various scenarios. The multiplication rule applies when determining the probability of two dependent events happening together, with the formula P(

Rules of Probability Distribution

mutually exclusive or disjoint the events do not occur the the same

Event An event is a subset of a sample space

Formulas of Probability Distribution

Subtraction Rule

Key word: At least one
The subtraction rule also known as the complement rule is when an event is NOT occurring.

P(A) = 1 - P(A')

Multiplication Rule

Key word: And
In multiplication A and B are two dependent events. Multiplication is used when the probability of events A and B occurs are equal. The is event A times event B occurs, which A is given.

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

Addition Rule

Key word: Or
In addition the event A or event B occurrences are equal to the probability. The formula is event A plus event B minus the probability of both A and B events.

P(A or B)= P(A) + P(B)-P(A and B) or Mutually exclusive or Disjoint: P(A or B)= P(A) + P(B)

Formulas: