define an independent event as one where the outcome on one event does not affect the outcome of a second event. Example would be drawing a card from a deck of 52, and then replacing the card back. The total number of outcomes does not change with each subsequent draw. Problem: a bag is filled with3 white, 2 yellow, 3 green, and 4 red marbles. A marble is withdrawn from the bag and then replaced and a second marble withdrawn. What is the probability of #1 being red and #2 being white? ( probability of event A THEN event B. The probability of each is determined individually , then each of the independent events are multiplied together to arrive at the probability of event A then B. 3-4 problems will be solved from the textbook to reinforce the method.