1. Statistics PSY302 Quiz One Spring 2015

2. 1. A _____ places an individual into one of several groups or categories. (p. 4) a. normal curve b. spread c. categorical variable d. center of a distribution e. proportion

3. 1. A _____ places an individual into one of several groups or categories. (p. 4) a. normal curve b. spread c. categorical variable d. center of a distribution e. proportion

4. 2. A ____ is a characteristic of the population. (13) a. normal curve b. parameter c. categorical variable d. center of a distribution e. proportion

5. 2. A ____ is a characteristic of the population. (13) a. normal curve b. parameter c. categorical variable d. center of a distribution e. proportion

6. 3. A _____ is a portion of the population or universe. (p. 12) a. histogram b. sample c. deviation score d. parameter e. variable

7. 3. A _____ is a portion of the population or universe. (p. 12) a. histogram b. sample c. deviation score d. parameter e. variable

8. 4. Inferential statistics is the process of (p. 14) a. analyzing data to determine truth b. describing or summarizing data distributions c. calculating the center or middle of the data d. determining the probability of an outcome e. making inferences about population parameters

9. 4. Inferential statistics is the process of (p. 14) a. analyzing data to determine truth b. describing or summarizing data distributions c. calculating the center or middle of the data d. determining the probability of an outcome e. making inferences about population parameters

10. 5. In the world of inferential statistics, sample ____ are used to estimate population parameters (p. 17) a. standard deviations b. operations c. histograms d. degrees of freedom e. statistics

11. 5. In the world of inferential statistics, sample ____ are used to estimate population parameters (p. 17) a. standard deviations b. operations c. histograms d. degrees of freedom e. statistics

12. 6. Grade Point Average (GPA) is an example of a(n): a. derivative b. inference c. residual d. category e. variable

13. 6. Grade Point Average (GPA) is an example of a(n): a. derivative b. inference c. residual d. category e. variable

14. 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

15. 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

16. 8. The population of interest is 450 dogs. Which of the following could be a sample of that population? (p. 12) a. 25 b. 451 c. 1,000 d. 800 e. all of the above

17. 8. The population of interest is 450 dogs. Which of the following could be a sample of that population? (p. 12) a. 25 b. 451 c. 1,000 d. 800 e. all of the above

18. 9. A (n)______ describes some characteristic of an individual such as height, weight or income. (p. 5) a. outlier b. mean c. variable d. trend e. stem-plot measures

19. 9. A (n)______ describes some characteristic of an individual such as height, weight or income. (p. 5) a. outlier b. mean c. variable d. trend e. stem-plot measures

20. 10. A _______ of a variable describes what values the variable takes and how often it takes these values. a. mean b. frequency distribution c. quartile d. square root e. confidence interval I hate quizzes!

21. 10. A _______ of a variable describes what values the variable takes and how often it takes these values. a. mean b. frequency distribution c. quartile d. square root e. confidence interval I hate quizzes!

22. The End

23. 1-c, 2-b, 3-b, 4-e, 5-e, 6-b, 7-a. 8-a, 9-c, 10-b