And - In probability, an outcome is in event "A and B" only when the outcome is in both event and A event B NOTATION: and means the number of outcomes in both A and B. n(A B) means the total number of possible outcomes n(S) AND = INTERSECTION INTERSECTION = where the sets or overlap “meet” VENN DIAGRAM: an element is in the intersection "A and B", only when the element was in BOTH sets. two events in which the occurrence of the first event the Independent Events does not affect – occurrence of the other (with replacement) Dependent Events two events in the outcome of the first event changes the probability of – the second event (without replacement) Example: 1.) If you draw two cards from a deck, what is the probability of drawing two aces, if you replace the first card? 2.) If you draw two cards from a deck, what is the probability of drawing two aces, if you keep the first card? OR =
And - In probability, an outcome is in event "A and B" only when the outcome is in both event A and event B NOTATION: n(A and B) means the number of outcomes in both A and B. n(S) means the total number of possible outcomes AND = INTERSECTION INTERSECTION = where the sets “meet” or overlap VENN DIAGRAM: an element is in the intersection "A and B", only when the element was in BOTH sets. Independent Events – two events in which the occurrence of the first event does not affect the occurrence of the other (with replacement) Dependent Events – two events in the outcome of the first event changes the probability of the second event (without replacement) Example: 1.) If you draw two cards from a deck, what is the probability of drawing two aces, if you replace the first card? 2.) If you draw two cards from a deck, what is the probability of drawing two aces, if you keep the first card? OR =
And-Or%20Probability.docx