10.2 Notes: Independent
vs. Dependent Events
What are independent events?
 Two events are independent if the occurrence of one event
does not affect the probability of the other event.
 Are they independent?
 1) Rain in Kentucky and having chicken for dinner?
 2) Snowing outside and needing a winter coat?
 3) rolling a 6 on a die and flipping a tail on a coin?
 4) Drawing a ten of spades, without replacement, then
drawing a 4 of hearts.
Dependent events
 Two events are dependent when the occurrence of one
event changes the probability of the second event.
 Look for WITH REPLACEMENT or WITHOUT REPLACEMENT
HW: p. 550 – 551 # 3-13