Day 6: Regression

October 16, 2008 by  
Filed under 10-Day Tour

With regression, you can make predictions.
When there is a strong correlation between two variables (positive or negative), you can make accurate predictions from one to the other. If sales and time are highly correlated, you can predict what sales will be in the future…or in the past. You can enhance the sharpness of an image by predicting what greater detail would look like (filling in the spaces between the dots with predicted values). Of course the accuracy of your predictions, depends on the strength of the correlation. Weak correlations produce lousy predictions.


    Day 6: Regression
    Bit More About Regression
    Even More About Regression
    Calculate Regression
    Practice Problems
    More Practice Problems
    Word Problems
        Sim1       Sim2         Sim3
        Sim4       Sim5         Sim6
        Sim7       Sim8         Sim9
    Basic Facts About Regression
    Audio: Lecturs
    Quiz 6


3 Responses to “Day 6: Regression”

  1. Statistics For Psychology : on June 27th, 2009 1:54 am

    […]           See Day 5: Correlation     Chapter 12: Prediction           See Day 6: Regression     Chapter 13: Chi-Square Tests     Chapter 14: Strategies When Population Distributions Are […]

  2. Gravetter & Wallnua : on June 27th, 2009 2:42 am

    […] 15: Correlation And Regression           See Day 5: Correlation           See Day 6: Regression      Chapter 16: The Chi-Square Statistic: Tests      Appendix A: Basic Mathematics Review […]

  3. Cartoon Guide To Statistics : on June 27th, 2009 3:21 am

    […]      Chapter 11: Regression           See Day 5: Correlation           See Day 6: Regression      Chapter 12: […]

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