AP Statistics : How to do logarithmic transformations

Study concepts, example questions & explanations for AP Statistics

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Example Questions

Example Question #1 : How To Do Logarithmic Transformations

       

   

Possible Answers:

     

    

Correct answer:

     

Explanation:

     

Example Question #11 : Bivariate Data

What transformation should be done to the data set, with its residual shown below, to linearize the data?

Graphic residual analysis 6

Possible Answers:

take the log of the dependent variable

Add  to the y-value of each data point

Nothing, the data set is already linear

multiply the dependent variable by a constant k.

multiply the independent variable by

Correct answer:

take the log of the dependent variable

Explanation:

Taking the log of a data set whose residual is nonrandom is effective in increasing the correleation coefficient and results in a more linear relationship.

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