Question 1

An Electronics Store Manager is interested in the probability that a selected television will be defective. After taking inventory, the manager finds that there is 3% chance of randomly selecting a defective television. Which type of probability is this?

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A.

Classical Approach to Probability

B.

None of the above

C.

Subjective Probability

D.

Relative Frequency Approximation of Probability

1 points

Question 2

In a collection of 200 raffle tickets, 5 are winning tickets. You purchase 5 tickets. What is the probability that you purchased at least one winning ticket?

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A.

0.20

B.

0.97

C.

0.03

D.

0.12

1 points

Question 3

The sample space for tossing 3 coins consists of how many outcomes?

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A.

6

B.

3

C.

5

D.

8

1 points

Question 4

A Librarian has a total of 9 books that she can select from for story-telling time. How many ways can the Librarian choose 3 books to use for story-telling time?

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A.

56

B.

27

C.

84

D.

504

1 points

Question 5

Which of the following is NOT a characteristic of probabilities?

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A.

The probability of an event must be between 0 and 1 inclusive.

B.

The probability that an event cannot occur is 0.

C.

The probability that an event must occur is 1.

D.

Probabilities are greater than 100%.

1 points

Question 6

In a recent survey, the following data was obtained in response to the question Do you prefer to watch movies at home or at the theater? The responses are listed in the table.

Gender	Home	Theater	Total
Females	25	35	60
Males	27	13	40
Total	52	48	100

What is the probability that the randomly selected person is a female and prefers to watch movies at the theater?

	A.	0.73
	B.	0.42
	C.	0.58
	D.	0.35

1 points

Question 7

A recent survey of 600 adults in the United States found that 197 of them smoke. What is the probability that a randomly selected adult does not smoke?

	A.	0.23
	B.	0.33
	C.	403
	D.	0.67

1 points

Question 8

Twelve runners enter a marathon. How many ways can the runners finish first, second and third?

	A.	440
	B.	110
	C.	220
	D.	1320

1 points

Question 9

In a recent survey, the following data was obtained in response to the question Do you prefer to watch movies at home or at the theater? The responses are listed in the table.

Gender	Home	Theater	Total
Females	25	35	60
Males	27	13	40
Total	52	48	100

What is the probability that the randomly selected person prefers to watch movies at home or is a male?

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A.

0.27

B.

0.52

C.

0.68

D.

0.65

1 points

Question 10

In a recent survey, the following data was obtained in response to the question Do you prefer to watch movies at home or at the theater? The responses are listed in the table.

Gender	Home	Theater	Total
Females	25	35	60
Males	27	13	40
Total	52	48	100

Given that the person prefers to watch movies at home, what is the probability that the randomly selected person is a female?

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A.

0.48

B.

0.42

C.

0.50

D.

0.65