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粉红豹 · 2018年12月19日

问一道题:NO.PZ2015120204000016

问题如下图:

    

选项:

A.

B.

C.

解释:


老师探讨下,题目如何知道correlation是0.6 而不是 - 0.6的呀?

1 个答案

菲菲_品职助教 · 2018年12月26日

同学你好,这题其实是根据之前你提问的那个case拆解出来的小题,需要通过其他背景信息来进行判断,我已经在上一个问题中回答你啦。

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NO.PZ2015120204000016 问题如下 SelecteANOVA Results for Hansen’s RegressionThe most appropriate interpretation of the multiple R-squarefor Hansen’s mol is that: A.unexplainevariation in the pennt variable is 36 percent of totvariation. B.correlation between precteanactuvalues of the pennt variable is 0.36. C.correlation between precteanactuvalues of the pennt variable is 0.60. C is correct.The multiple R-squarefor the regression is 0.36; thus, the mol explains 36 percent of the variation in the pennt variable. The correlation between the precteanactuvalues of the pennt variable is the square root of the R-squareor0.36\sqrt{0.36}0.36​= 0.60. rt

2023-05-14 09:55 1 · 回答

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2023-01-08 11:11 1 · 回答

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