'Correlation' is to 'regression' as ______.

A) 'relationship' is to 'prediction'
B) 'significant' is to 'nonsignificant'
C) 'nature' is to 'direction'
D) 'theory' is to 'hypothesis'

Correlation and regression both involve analyzing the relationship between two variables. Similarly, "relationship" and "prediction" both involve analyzing the connection between two things. Thus, A is the best choice. B is incorrect because "significant" and "nonsignificant" are terms used to describe the results of statistical tests, whereas correlation and regression are types of analysis. C and D are not directly related to the relationship between correlation and regression.