1. Chapter 17
Thinking about Chance

2. 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

3. 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)

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

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

6. 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

7. 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)

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

9. 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

10. 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

11. 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

12. 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

13. 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

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

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

16. 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

17. 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

18. 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

19. 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)

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

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

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

23. 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)

24. 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

25. 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)