MATH 7 UNIT 9 Probability

Match the definition to the correct term. If the outcome of one event does not affect the other event, the events are _. Independent Events The _ of rolling a 3 on a number cube is 1 Probability The set of all possible outcomes in a probability experiment is the _ Sample Space _, or relative frequency, is based on what actually occurs during an experiment. Experimental Probability Organized lists, tables, and _ can be used to represent sample space. Tree Diagrams The possible result of an experiment is a(n) _. Outcome The likelihood that an event should happen in ideal circumstances is called the _. Theoretical Probability There are 10 game pieces in a bag: 5 yellow, 2 red, and 3 green.You randomly select a game piece from above. What is the probability you choose yellow? 5 1 4 There are 10 game pieces in a bag: 5 yellow, 2 red, and 3 green.You randomly select a game piece from above. What is the probability you select a piece other than red? 2 1 4 Sunscreen comes in three forms: Spray, Cream, or Gel. It comes in 4 different SPF's: 25, 30, 45 and 50.How many different combinations or forms and SPF are there? 7 3 12 10 Sort each probability into independent or dependent. Independent Event Spinning a spinner Flipping a coin Drawing a card and replacing it Dependent Event Drawing a red marble and then a green marble without replacement Choosing two different students from the class Drawing a king and then a queen without replacement Two socks are drawn from a drawer which contains one red sock, three blue socks, two black socks, and two green socks. Once a sock is selected, it is not replaced. Determine each probability. P(a black sock and then a green sock) 2 out of 8 1 out of 16 1 out of 14 4 out of 8 P(two blue socks) 3 out of 8 3 out of 28 9 out of 64 6 out of 8 There are three quarters, five dimes, and twelve pennies in a bag. Once a coin is drawn from the bag, it is not replaced. If two coins are drawn at random, determine each probability. P(a quarter and then a penny) 9 out of 95 9 out of 100 15 out of 20 P(two pennies) 23 out of 380 9 out of 25 33 out of 95