# 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

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