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What is the probability of rolling an even number on one die and an odd number on the other? ½ ¾ ⅛ ¼ D.8.12 This list represents Frank's cards. If Frank randomly selects two cards, an Ace of Spades and Two of clubs, and does not replace them. What is the probability the next card will be a heart? 33 1/3% 30% 6 3% D.8.11 I have two different rings, four hats, and three jackets. How many ways can I select a ring, hat, and jacket to wear? 9 24 1/24
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D.8.10&12 Each spinner is spun one time. What is the probability neither spinner will land on blue? 1/12 3/10 ½ 11/12 D.8.12 If I spin each spinner one time, how many possible outcomes are there? 12 8 1/8 1/12 D.8.10 The table shows the results of spinning a spinner with five equal sections fifty times. Based on these results, what is the probability of spinning an odd number?
25% 50% 25 36% D.8.7 This spinner has equal sections, labeled A, B, C, D, and E. If I spin the spinner two times, what is the probability it will land on A each time? 1/10 1/25 1/5 2/25 D.8.10 What is the probability of picking a yellow or a blue disc? D.8.11 Susan has 4 colors of wrapping paper, 3 colors of ribbon, and 2 types of tape. How many different ways does she have to wrap a package with one color of wrapping paper, one color of ribbon, and one type of tape? 1 4 12 24 D.8.9 What is the mean?
the number(s) that occur the most frequently "arithmetic average" greatest number - smallest number the middle # in an ordered set of data D.8.1 the middle # in an ordered set of data the difference between the greatest & lowest #s "arithmetic average" the number(s) that occurs the most frequently What is the best definition for "range"? D.8.1 What is the mode?
the number(s) that occur the most frequently "arithmetic average" greatest number - smallest number the middle # in an ordered set of data D.8.1 the middle # in an ordered set of data the difference between the greatest & lowest #s "arithmetic average" the number(s) that occurs the most frequently What is the best definition for "median"? D.8.1 Match the terms with the definitions. Use capital letters. A. Mode B. Median C. Range D. Mean "arithmetic average" and lowest values difference between highest of data items exact middle value in a set data value occurring most often D.8.1 Tanya's has the following scores in Social Studies 95, 85, 65 and 77. With these scores she currently has an average grade of 80. What is the lowest score she can get on the next exam and still be able to maintain her 80 average? 74 77 73 75 D.8.4 What is the median age of a player? What is the range of ages? Age Ranges of Football Team 3 2 1 key 1 3, 3, 4, 4, 5, 6 4,5, 6, 7, 7, 8,8,9 1, 3, 3, 5, 9 3 = 13 D.8.4 What is the mode of the data? 33, 23, 55, 66, 13, 35, 27, 28, 59,59, 55,55, 15, 16 Given the following data create a stem and leaf plot. Stem Leaf 2 5 3, 3, 5 , ,9,9 D.8.4&6 If the outcome of an event does not effect the outcome of another event, the two events are--------- Dependent Compound Independent Simple D.8.2 What is the probability of selecting a blue marble from the bag? 2/7 5/7 10/49 7/7 D.8.11 If the outcome of an event does effect the outcome of another event, the two events are------- Dependent Independent Compound Simple D.8.2 If I flip a coin and then roll a die the outcomes are: Unknown Independent Dependent D.8.2 I draw an Ace of Spades from a deck of cards and do not replace it. Then I draw another card from the deck of cards. This is an example of: Independent Events Dependent Events D.8.2 A bag contains 4 red marbles, 5 blue marbles, and 3 green marbles. Two marbles are picked at random. On the first pick a red marble is drawn out and then replaced. This is an example of: An Independent Event A Dependent Event D.8.2 A bag contains 4 red marbles, 5 blue marbles, and 3 green marbles. Two marbles are picked at random. On the first pick a blue marble is drawn out and not replaced. This is an example of: An Independent Event A Dependent Event D.8.2 Kaitlyn surveyed all the members of the middle school band about their favorite class this semester. The results are shown in the table below. From these results, Kaitlyn concluded that band was the favorite class among all the students in her school. Which is the best explanation about why her conclusion may not be valid? The survey should have been done each day for a week. The sample was not representative of all the students at the school. The survey should have been done with eighth grade students only. The band meets only three days a week. D.8.13 Which circle graph best represents the type and number of pets reported by students in the survey? Mrs. Plachy surveyed the students in her science class about the type and number of pets they owned. The table shows the results of the survey. A B C D D.8.6 The number of games won over four years for three teams is shown on the graph below. Team 2 won more games each year than in the previous year. Team 1 always won more games than Team 3. Team 3 always came in second. Team 1 had the best average overall. Which statement is true based on this information? Complete the stem and leaf diagram 38 5 3 4 2 Here is a list of test scores 37 3 4 34 Key 3 1 41 29 7 4 means 4 8 54 33 40 38 56 D.8.8 Here is a stem and leaf diagram showing the ages of 9 people b. What is the range of ages? a. What is the mean of the data? c. What is the median age? 3 2 0 1 0 5 3 5 1 4 4 7 8 Key 3 4 means 4 D.8.4 a. what is the modal test score? b. what is the range of scores? c. what is the mean score? (Round to the nearest hundredth.) d. what is the median score? Here is a stem and leaf diagram showing the test scores of 11 pupils 7 4 5 6 2 3 4 1 1 8 6 7 9 2 5 Key 5 3 means 53 D.8.4 Match the terms with the definitions. Use capital letters. A. Unlikely B. Equally Likely C. Impossible D. Certain two outcomes that have the same chance of happening an event that may not happen an event that can not occur an event that is sure to happen D.8.3 Unlikely Equally Likely More Likely Certain The sun will come up tomorrow is an example of which type of event? D.8.3 A person living to be 200 years old is and example of which event? Impossible More Likely Certain Unlikely D.8.3 Getting heads or tails when flipping a coin is an example of which type of event? Unlikely Equally Likely More likely Impossible D.8.3 A high school football player growing up to be in the NFL is an example of which type of event? More Likely Unlikely Impossible Certain D.8.3 Centennial JHS 8th grade girls 8th graders 8th grade boys A survey is given to students in the 8th grade at Centennial JHS. What is the sample space? D.8.13 Which sample space would be the best choice to answer the question "Which actor is the favorite among 7th grade girls?" Students in Spanish classes Girls during 7th grade lunch Students in 7th period choir Students at the local middle school D.8.13 Create a tree diagram for the following problem. An ice cream shop has vanilla and chocolate ice cream, and chocolate and strawberry syrup. You can also choose between sprinkles or nuts. Make a tree diagram showing the outcomes. Ice Cream Flavor Syrup Flavor Topping vanilla chocolate chocolate strawberry nuts sprinkles sprinkles nuts D.8.8 |