A Concise Introduction To Logic 13th Edition By Patrick J. Hurley – Test Bank

1. To compute the probability of having a loaded die turn up six, the theory of probability that would normally be used is the:
a. Relative frequency theory.
b. Classical (a priori) theory.
c. Subjectivist theory.
d. Conditional theory.
e. Relativist theory.
ANSWER: a

2. To compute the probability of the Chargers football team beating the Patriots, the theory of probability that would normally be used is the:
a. Relativist theory.
b. Conditional theory.
c. Classical (a priori) theory.
d. Subjectivist theory.
e. Relative frequency theory.
ANSWER: d

3. To compute the probability of drawing two aces from a poker deck (without replacing the first card before drawing the second) the theory of probability that would normally be used is the:
a. Conditional theory.
b. Subjectivist theory.
c. Classical (a priori) theory.
d. Relative frequency theory.
e. Relativist theory.
ANSWER: c

Event 1B
Given the following event:
Suppose an irregular 7-sided solid object, having sides numbered 1 through 7, is rolled 100 times, and side 4 turns up 12 times.

4. What is the approximate probability of Event 1B happening?
a. .33
b. .12
c. 1/12
d. 1/7
e. 7/12
ANSWER: b

5. In regard to Event 1B, what are the odds?
a. 1 to 4.
b. 7 to 100.
c. 7 to 125.
d. 3 to 25.
e. 3 to 22.
ANSWER: e

6. If the odds of the Yankees beating the Red Sox are 5 to 3, what is the probability of this event happening?
a. 1/8
b. 5/8
c. 3/5
d. 3/8
e. 5/3
ANSWER: b

7. What is the probability of drawing a black jack from a poker deck (no jokers) on a single draw?
a. 2/13
b. 1/4
c. 1/26
d. 1/13
e. 1/52
ANSWER: c

8. Given an urn containing 4 red balls, 2 blue balls, and 3 yellow balls. What is the probability of drawing either a red ball or a blue ball on a single draw?
a. 2/3
b. 1/2
c. 8/9
d. 1/3
e. 4/9
ANSWER: a

9. What is the probability of getting at least 1 head on 3 successive tosses of a coin?
a. 1/8
b. 3/4
c. 5/8
d. 15/16
e. 7/8
ANSWER: e

10. Given an urn containing 3 red balls and 4 white balls. If two balls are drawn and the first ball is not replaced before the second is drawn, what is the probability that both balls are red?
a. 2/7
b. 7/12
c. 1/6
d. 1/7
e. 1/5
ANSWER: d