1. The number of pets in your household is an example of what kind of variable?

continous

ordinal

nominal

discrete

2. Data measured on scale in which the zero is a reference point (such as temperature) is measured on the _________ scale, whereas data measured on a scale in which zero stands for the absence of the thing being measured (such as the number of hamburgers you ate this week) is measured on a ________ scale.

nominal; ordinal

ratio; interval

interval; ratio

ordinal; nominal

3. A researcher is gathering data on people's favorite sports teams. The variable, favorite sports team, is an example of a _______ variable.

ordinal

nominal

ratio

interval

4. A student is measuring the average number of hours students at HCC sleep per week. She finds that the average is 48. Given that number of hours slept is a continuous variable, what are the real limits for 48?

48 and 49

47 and 49

48.5 and 49.5

47.5 and 48.5

5. A researcher conducts a correlational study in which he finds a strong relationship between drinking juice and getting stomach viruses. This means that drinking juice causes stomach viruses.

i.True

ii.False

6. A researcher is studying differences in color preferences between 3-year-old boys and 3-year-old girls. The researcher is using an nonexperimental (also known as quasi-experimental) method.

i.True

ii.False

7. What is the total number of scores for the distribution shown in the following table?

X	Y
4	3
3	5
2	4
1	2

A.37

B.14

C.10

D. 4

8. For the following distribution, what is the width of each class interval?

X	Y
20-24	2
15-19	5
10-14	4
5-9	1

A. 10

B.5

C.4.5

D.4

9. For the data in the following table, what is the value of EX?

X Y A. Cannot be determined from the table

4 1 B. 20

3 2 C. 15

2 4 D. 10

1 2

10. A student is studying the effect of pulling all-nighters on exam scores among students at HCC. He selects a group of 32 students to be in his study. This group of students is called a...

A. sample

B. statistic

C. population

D. parameters