王雨潇 · 2022年05月14日
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
NO.PZ2021061603000031 问题如下 A correlation of 0.34 between two variables, X anY, is best scribeas: A.changes in X causing changes in Y. B.a positive association between X anY C.a curvilinerelationship between X anY B is correct. The correlation coefficient is positive, incating ththe two series move together. C的知识点是哪节课讲到的呀
NO.PZ2021061603000031问题如下A correlation of 0.34 between two variables, X anY, is best scribeas: A.changes in X causing changes in Y.B.a positive association between X anYC.a curvilinerelationship between X anYB is correct. The correlation coefficient is positive, incating ththe two series move together.我能理解Correlation是正的代表正相关反而风险分散机制弱么？
NO.PZ2021061603000031 问题如下 A correlation of 0.34 between two variables, X anY, is best scribeas: A.changes in X causing changes in Y. B.a positive association between X anY C.a curvilinerelationship between X anY B is correct. The correlation coefficient is positive, incating ththe two series move together. 只要correlation是正数他们的关系就是positive的吗？
NO.PZ2021061603000031b说的是正向的关系，也没说是线性啊
