Chapter 17 Thinking about Chance

Thinking about Chance 1 A random outcome Is unpredictable Has a 50/50 chance of occurrence Is haphazard Has a predictable pattern in the long term

Thinking about Chance 1 (answer) A random outcome Is unpredictable Has a 50/50 chance of occurrence Is haphazard Has a predictable pattern in the long term (correct)

Thinking about Chance 2 The probability of a random outcome is Unpredictable 1/2 Some number between 0 and 1

Thinking about Chance 2 (answer) The probability of a random outcome is Unpredictable 1/2 Some number between 0 and 1 (correct)

Thinking about Chance 3 A probability of 1 can be interpreted to mean The event has a 0.01% chance of happening The event has a 1% chance of happening The event has a 100% chance of happening

Thinking about Chance 3 (answer) A probability of 1 can be interpreted to mean The event has a 0.01% chance of happening The event has a 1% chance of happening The event has a 100% chance of happening (correct)

Thinking about Chance 4 The proportion of times a random outcome happens in a long series of repetitions is Its probability Its odds Unpredictable

Thinking about Chance 4 (answer) The proportion of times a random outcome happens in a long series of repetitions is Its probability (correct) Its odds Unpredictable

Thinking about Chance 5 A correct interpretation of the law of averages is If I roll a die 600 times, I can predict 100 2s If I roll a die many times, I can predict about 1/6 of the rolls to result in a 2 On average, half my dice rolls should result in a 2

Thinking about Chance 5 (answer) A correct interpretation of the law of averages is If I roll a die 600 times, I can predict 100 2s If I roll a die many times, I can predict about 1/6 of the rolls to result in a 2 (correct) On average, half my dice rolls should result in a 2

Thinking about Chance 6 A female college student decides which party to attend, based on the chances of a particular handsome male being present. She computed A personal probability The chances she would see the handsome male if she could repeat this night many times The probability of seeing the handsome male

Thinking about Chance 6 (answer) A female college student decides which party to attend, based on the chances of a particular handsome male being present. She computed A personal probability (correct) The chances she would see the handsome male if she could repeat this night many times The probability of seeing the handsome male

Thinking about Chance 7 True or False: A personal probability is a number between 0 and 1. TRUE FALSE

Thinking about Chance 7 (answer) True or False: A personal probability is a number between 0 and 1. TRUE (correct) FALSE

Thinking about Chance 8 True or False: The general population think an event is more risky than it actually is when they feel they have very little control. TRUE FALSE

Thinking about Chance 8 (answer) True or False: The general population think an event is more risky than it actually is when they feel they have very little control. TRUE (correct) FALSE

Thinking about Chance 9 True or False: There will be exactly 40 1s in any list of 400 digits from the table of random digits. TRUE FALSE

Thinking about Chance 9 (answer) True or False: There will be exactly 40 1s in any list of 400 digits from the table of random digits. TRUE FALSE (correct)

Thinking about Chance 10 True or False: 5 out of every 10 coin flips will result in “tails.” TRUE FALSE

Thinking about Chance 10 (answer) True or False: 5 out of every 10 coin flips will result in “tails.” TRUE FALSE (correct)

Thinking about Chance 11 Which of the following results of six coin flips is the least probable? TTTHHH TTTTTT THTHTH All are equally likely

Thinking about Chance 11 (answer) Which of the following results of six coin flips is the least probable? TTTHHH TTTTTT THTHTH All are equally likely (correct)

Thinking about Chance 12 TRUE or FALSE: If a fair coin is flipped 10 times, exactly 5 of the flips will result in “heads.” True False

Thinking about Chance 12 (answer) TRUE or FALSE: If a fair coin is flipped 10 times, exactly 5 of the flips will result in “heads.” True False (answer)