The goal of the simple regression analysis is to understand [Mark one answer]: _______ the nature of the association between the two numerical variables X and Y.  _______ the nature of the association between the two categorical variables X and Y.  _______ the nature of the linear association between the two numerical variables X and Y.  _______ the nature of the linear association between the two categorical variables X and Y.

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Q: The comparison of two variables is known as: ___________________________________.

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A: Option D is correct i.e The association is positive and non linear.

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A: a)