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When the magnitude of one explanatory variable changes as a function of another explanatory variable, this...

When the magnitude of one explanatory variable changes as a function of another explanatory variable, this is called: a quadratic relationship. satisfying the condition of constant variance. parallel. an interaction.

Math   Statistics-And-Probability   
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Answer #1

We know that the interaction effect in the model is defined as the change in independent variable due to the change in the another independent variable. So, the given case is also an example of interaction effect between two independent variable where one independent variable is showing change in the another independent variable

therefore, correct answer is interaction or option D

option A is incorrect because it is not related to the quadratic equation

option B is incorrect because this is not the case of constant variance because there is no change in the mean value

option C is incorrect because these two variables are not parallel  

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