NO.PZ2021061603000031
问题如下:
A correlation of 0.34 between two variables, X and Y, is best described as:
选项:
A.changes in X causing changes in Y. B.a positive association between X and Y C.a curvilinear relationship between X and Y解释:
B is correct. The correlation coefficient is positive, indicating that the two series move together.
为什么A不对