Multiply the probability of the events together. Probability P (event) tells you It is expressed as a number between _________ and ________. Probability: P (event) = ______________________________________ how likely it is that something will occur zero one number of favorable outcomes If there are TWO EVENTS: number of possible outcomes Multiply the probability of the events together. 1. What is the probability of rolling an even number on a number cube? 2. There are 3 red, 7 blue and 6 green marbles in a bag. What is the probability of pulling out a green marble? 3. What is the probability of pulling a 9 from a deck of playing cards? 4. A student flips a coin and then rolls a die. What is the probability the outcome will be tails and a number less than 5? A. C. B. D. . A fair number cube is rolled two times. What is the probability a 3 and then an even number will be rolled? E. G. F. H.

number of favorable outcomes Odds: Odds in favor = ____________________________________ Odds against = __________________________________ number of favorable outcomes number of unfavorable outcomes number of unfavorable outcomes number of favorable outcomes 1. The names of 6 girls and 9 boys are placed in a bag. If one name is randomly picked from the bag, what are the odds in favor of it being a boy’s name? 2:3 U. 3:2 . 2:5 V. 3:5 2. There are 10 yellow and 5 purple marbles in a bag. If one marble is randomly picked from the bag, what are the odds in favor of it being yellow? 1:2 S. 2:3 2:1 T. 3:2 3. The odds in favor of a student winning a game are 2:5. What is the probability of winning the game? K. Q. L. R.