Statistics PSY302 Quiz One

Spring 2015

1. A _____ places an individual into one of several groups or categories. (p. 4)

a. normal curveb. spreadc. categorical variabled. center of a distributione. proportion

1. A _____ places an individual into one of several groups or categories. (p. 4)

a. normal curveb. spreadc. categorical variabled. center of a distributione. proportion

2. A ____ is a characteristic of the population. (13)

a. normal curve

b. parameter

c. categorical variabled. center of a distribution

e. proportion

2. A ____ is a characteristic of the population. (13)

a. normal curve

b. parameter

c. categorical variabled. center of a distribution

e. proportion

3. A _____ is a portion of the population or universe. (p. 12)

a. histogramb. samplec. deviation scored. parametere. variable

3. A _____ is a portion of the population or universe. (p. 12)

a. histogramb. samplec. deviation scored. parametere. variable

4. Inferential statistics is the process of (p. 14)

a. analyzing data to determine truthb. describing or summarizing data distributionsc. calculating the center or middle of the data d. determining the probability of an outcome e. making inferences about population parameters

4. Inferential statistics is the process of (p. 14)

a. analyzing data to determine truthb. describing or summarizing data distributionsc. calculating the center or middle of the data d. determining the probability of an outcome e. making inferences about population parameters

5. In the world of inferential statistics, sample ____ are used to estimate population parameters (p. 17)

a. standard deviationsb. operationsc. histogramsd. degrees of freedom e. statistics

5. In the world of inferential statistics, sample ____ are used to estimate population parameters (p. 17)

a. standard deviationsb. operationsc. histogramsd. degrees of freedom e. statistics

6. Grade Point Average (GPA) is an example of a(n):

a. derivativeb. inferencec. residuald. categorye. variable

6. Grade Point Average (GPA) is an example of a(n):

a. derivativeb. inferencec. residuald. categorye. variable

7. Inferential statistics involves using a sample to estimate some property of a population. The

problem is:

a. you cannot be placed into more than one category

b. the categories all have the same level of importance

c. the categories have a true zero

d. the categories are only open to special people

e. Sampling error

7. Inferential statistics involves using a sample to estimate some property of a population. The

problem is:

a. you cannot be placed into more than one category

b. the categories all have the same level of importance

c. the categories have a true zero

d. the categories are only open to special people

e. Sampling error

8. The population of interest is 450 dogs. Which of the following could be a sample of that population?

(p. 12)

a. 25b. 451c. 1,000d. 800e. all of the above

8. The population of interest is 450 dogs. Which of the following could be a sample of that population?

(p. 12)

a. 25b. 451c. 1,000d. 800e. all of the above

9. A (n)______ describes some characteristic of an individual such as height, weight or income. (p. 5)

a. outlierb. meanc. variabled. trende. stem-plot measures

9. A (n)______ describes some characteristic of an individual such as height, weight or income. (p. 5)

a. outlierb. meanc. variabled. trende. stem-plot measures

10. A _______ of a variable describes what values the variable takes and how often it takes these

values.

a. meanb. frequency distributionc. quartiled. square root e. confidence interval

I hate quizzes!

10. A _______ of a variable describes what values the variable takes and how often it takes these

values.

a. meanb. frequency distributionc. quartiled. square root e. confidence interval

I hate quizzes!

The End

1-c, 2-b, 3-b, 4-e, 5-e, 6-b, 7-a. 8-a, 9-c, 10-b