Statistics PSY302 Quiz Chapters 3

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

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

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

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

3. The Mean is sometimes represented by: The @ sign The Greek letter Sigma Σ X μ All of the above

3. The Mean is sometimes represented by: The @ sign The Greek letter Sigma Σ X μ All of the above

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

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

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

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

6. 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.

6. 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.

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

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

8. 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

8. 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

9. 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

9. 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

10. 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

10. 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

Bonus. 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

Bonus. 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

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

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

The End

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