Lesson 6. Skills Practice Name_Date Rolling, Rolling, Rolling... Defining and Representing Probability Vocabulary Write the term from the box that best completes each statement. experiment probability event equally likely outcome sample space simple event. A(n) event is one or a group of possible outcomes for a given situation. 2. A list of all possible outcomes of an experiment is called a(n) sample space. 3. A(n) experiment is a situation involving chance that leads to results.. The measure of the likelihood that an event will occur is its probability. 5. The result of an experiment is a(n) outcome. 6. An event consisting of one outcome is a(n) simple event. 7. When the probabilities of all the outcomes of an experiment are equal, then the probabilities are called equally likely. Problem Set List the sample space for each experiment.. Peter writes each day of the week on a slip of paper and puts all of the slips of paper in a bag. Peter chooses one slip of paper from the bag. The sample space is {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}. Chapter 6 Skills Practice 92
Lesson 6. Skills Practice page 2 2. Tina spins the spinner shown one time. 3 2 The sample space is {, 2, 3, }. 3. A drawer contains black socks, 2 brown socks, and 2 blue socks. Samuel picks one sock from the drawer. The sample space is {black sock, brown sock, blue sock}.. Stefan picks one of the colors in the American flag. The sample space is {red, white, blue}. 5. Jonetta tosses a coin two times. The sample space is {HH, HT, TH, TT}. 6. Roni spins the spinner shown one time. B C A 3 The sample space is {A, B, C, D,, 2, 3, }. 2 D 922 Chapter 6 Skills Practice
Lesson 6. Skills Practice page Calculate each probability. 3. Eva spins the following spinner one time. Calculate P(even number). 3 2 P(even number) 5 number of times an even number can occur 2 5. Clare spins the following spinner one time. Calculate P(vowel). 5 2 A B 3 C 2 D P(vowel) 5 number of times a vowel can occur 5 8 5. Emmett spins the following spinner one time. Calculate P(letter). B C A D 3 2 P(letter) 5 number of times a letter can occur 5 8 5 2 92 Chapter 6 Skills Practice
Lesson 6. Skills Practice page 5 Name Date 6. Peter writes the days of the week on slips of paper and puts the slips of paper in a bag. Peter chooses one slip of paper from the bag. Calculate P(weekend). number of times a weekend day can occur P(weekend) 5 _ 2 total number of days 5 7 7. A drawer contains black socks, 2 brown socks, and 2 blue socks. Samuel picks one sock from the drawer. Calculate P(blue sock). number of times a blue sock can be picked P(blue) 5 2 5 5 total number of socks 8 8. Javier rolls a number cube one time. Calculate P(number greater than 3). number of times a number greater than 3 can occur P(number. 3) 5 _ 3 5 5 6 2 9. Alice rolls a number cube one time. Calculate P(number less than 7). P(number, 7) 5 number of times a number less than 7 can occur 5 6 6 5 20. Jeanine spins the following spinner one time. Calculate P(shape with exactly sides). P( sides) 5 number of times a shape with sides can occur 2 5 6 5 3 Chapter 6 Skills Practice 925
Lesson 6. Skills Practice page 8 35. A cooler contains 5 bottles of lemonade, 7 bottles of water, and 6 bottles of iced tea. You choose one bottle from the cooler without looking. Calculate P(iced tea). number of times you can choose an iced tea P(iced tea) 5 total number of bottles 5 6 8 5 3 36. A jar contains quarters, 26 dimes, nickels, and 7 pennies. You choose one coin from the jar without looking. Calculate P(dime). number of times you can choose a dime P(dime) 5 total number of coins 5 26 58 5 3 29 37. There are cherry-flavored yogurts and 2 strawberry-flavored yogurts on a store shelf. Margaret chooses a yogurt without looking. Calculate P(cherry). number of times she can choose a cherry yogurt P(cherry) 5 _ total number of yogurts 5 6 5 928 Chapter 6 Skills Practice
Lesson 6. Skills Practice page 9 Name Date 38. Ronald ordered 2 DVDs. Four are historical, two are science fiction, and the rest are comedies. When they arrive, he determines which DVD to watch first by choosing one from the order without looking. What is the probability that the first DVD he watches is a comedy? number of times he can pick a comedy P(comedy) 5 _ total number of DVDs 5 6 2 5 2 39. There are 5 female kittens and 2 male kittens at a pet shelter. An advertising director randomly chooses one kitten to be in a commercial. What is the probability that he chooses a male kitten? number of times he can pick a male kitten P(male) 5 total number of kittens 5 2 36 5 7 2 0. A website selling backpacks offers 3 blue backpacks, 8 black backpacks, 2 red backpacks, and 2 green backpacks. Judy likes them all and tells her brother to randomly pick one for her. What is the probability that he picks a black backpack? number of times he can choose a black backpack P(black) 5 total number of backpacks 5 8 5 Chapter 6 Skills Practice 929