Statistics PSY302 Quiz Chapters 2

1. Statistics PSY302 Quiz Chapters 2

2. 1. The mean, mode and median are examples of measures of: • The middle • Central Tendency • Variability • A & B • All of the above

3. 1. The mean, mode and median are examples of measures of: • The middle • Central Tendency • Variability • A & B • All of the above

4. 2. The Mean is sometimes represented by: • The @ sign • The Greek letter Sigma Σ • The letter Mu (μ) • X • All of the above

5. 2. The Mean is sometimes represented by: • The @ sign • The Greek letter Sigma Σ • The letter Mu (μ) • X • All of the above

6. 2. The Mean is sometimes represented by: • The @ sign • The Greek letter Sigma Σ • The letter M • X • All of the above

7. 3. The Mean of these four numbers is: • 1 • 2 • 3 • 4 • 5 • 5 • 4 • 3 • 8

8. 3. The Mean of these four numbers is: • 1 • 2 • 3 • 4 • 5 • 5 • 4 • 3 • 8

9. 4. An _____ is the one value that represents an entire group of scores. • Raw score • Individual score • Average • mode • Maximum value

10. 4. An _____ is the one value that represents an entire group of scores. • Raw score • Individual score • Average • mode • Maximum value

11. 5. A frequency distribution tells us all the values a variable can take and : • The mode • Why the data are skewed • The frequency of each value • Which category each one belongs in • All of the above.

12. 5. A frequency distribution tells us all the values a variable can take and : • The mode • Why the data are skewed • The frequency of each value • Which category each one belongs in • All of the above.

13. 6. Height, income, age, percent correct on the final are examples of ____ data. • Categorical • Nominal • Ordinal • Quantitative • All of the above

14. 6. Height, is an example of ____ data. • Categorical • Nominal • Ordinal • Quantitative • All of the above

15. 7. An example of categorical data is • John is a sophomore • Mellody has a 3.21 GPA • Tyrone has completed 48 hours • Ulrike weighs 121 pounds • All of the above

16. 7. An example of categorical data is • John is a sophomore • Mellody has a 3.21 GPA • Tyrone has completed 48 hours • Ulrike weighs 121 pounds • All of the above

17. 8. Use the ____ to determine the middle when you have extreme scores and you don’t want to distort the average. • Median • Mean • Mode • Standard Deviation • All of the above

18. 8. Use the ____ to determine the middle when you have extreme scores and you don’t want to distort the average. • Median • Mean • Mode • Standard Deviation • All of the above

19. 9. Use the ___ as a measure of central tendency when the data are categorical in nature and values can fit only into one class. • Median • Mean • Mode • Standard Deviation • All of the above

20. 9. Use the ___ as a measure of central tendency when the data are categorical in nature and values can fit only into one class. • Median • Mean • Mode • Standard Deviation • All of the above

21. 10. Use the ___ as a measure of central tendency when you have data that do not include extreme scores and are not categorical. • Median • Mean • Mode • Standard Deviation • All of the above

22. 10. Use the ___ as a measure of central tendency when you have data that do not include extreme scores and are not categorical. • Median • Mean • Mode • Standard Deviation • All of the above

23. Bonus question. The frequency distribution below is an example of: • Positively skewed data • Negatively skewed data • Normally distributed data.

24. Bonus question. The frequency distribution below is an example of: • Positively skewed data • Negatively skewed data • Normally distributed data.

25. The End

26. Freshman less than 22 • Sophomore 22-53 • Junior 54-86 • Senior 87 or more.