Linear Correlation & Regression

14 Questions | Total Attempts: 51

SettingsSettingsSettings
Please wait...
Linear Correlation & Regression

Calculate a correlation coefficient, use it to classify the correlation, then calculate the equation of the line of best fit and use that equation to make predictions.


Related Topics
Questions and Answers
  • 1. 
    Find 
  • 2. 
    Find 
  • 3. 
    Find 
  • 4. 
    Find 
  • 5. 
    Find 
  • 6. 
    Calculate the correlation coefficient. Round your answer to 2 decimal places.
  • 7. 
    Classify the relationship between number of siblings and overall mark.
  • 8. 
    Calculate the slope of the line of best fit. Round your answer to 2 decimal places.
  • 9. 
    Calculate the y-intercept of the line of best fit. Round to 2 decimal places.
  • 10. 
    Write the equation of the line of best fit. Leave all values at 2 decimal places, do not use capitals and do not use spaces.
  • 11. 
    What mark would you expect from a person with 6 siblings? Round to the nearest whole mark.
  • 12. 
    Is estimating the mark of a person with 6 siblings interpolation or extrapolation?
    • A. 

      Interpolation

    • B. 

      Extrapolation

    • C. 

      Neither

    • D. 

      Both

  • 13. 
    If a person who has a mark of 78, how many siblings would you expect them to have? Remember to round! A person can't have part of a sibling!
  • 14. 
    Is determining the number of siblings for a person with a mark of 78, interpolation or extrapolation?
    • A. 

      Interpolation

    • B. 

      Extrapolation

    • C. 

      Neither

    • D. 

      Both