ch1.

Question 1

1. Methods for developing useful decision-making information from large data bases is known as

Answer 1

d. data mining

Question 2

2. The process of capturing, storing, and maintaining data is known as

Answer 2

c. data warehousing

Question 3

3. The subject of data mining deals with

Answer 3

a. methods for developing useful decision-making information from large data bases

Question 4

4. In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the

Answer 4

b. nominal scale

Question 5

5. The nominal scale of measurement has the properties of the

Answer 5

d. None of these alternatives is correct.

Question 6

6. The scale of measurement that is used to rank order the observation for a variable is called the

Answer 6

b. ordinal scale

Question 7

7. Some hotels ask their guests to rate the hotel’s services as excellent, very good, good, and poor. This is an example of the

Answer 7

a. ordinal scale

Question 8

8. The ordinal scale of measurement has the properties of the

Answer 8

c. nominal scale

Question 9

9. The ratio scale of measurement has the properties of

Answer 9

d. the interval scale

Question 10

10. Temperature is an example of a variable that uses

Answer 10

b. the interval scale

Question 11

11. The interval scale of measurement has the properties of the

Answer 11

d. None of these alternatives is correct.

Question 12

12. Arithmetic operations are inappropriate for

Answer 12

d. the nominal scale

Question 13

13. Income is an example of a variable that uses the

Answer 13

a. ratio scale

Question 14

14. Data obtained from a nominal scale

Answer 14

b. can be either numeric or nonnumeric