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想谷女士 · 2022年12月10日

为什么intercept代表的是winning而不是average？

  1. CPA
  2. 会计

* 问题详情，请 查看题干

NO.PZ202208220100000503

问题如下：

Determine which one of the following statements is true. “The intercept in these logistic regressions is interpreted as the ___.”

选项：

A.probability of the ETF being a winning fund if all independent variables are one B.log odds of the ETF being a winning fund if all independent variables are zero C.log odds of the ETF being an average fund if all independent variables are zero

解释：

B is correct. The intercept in these logistic regressions is interpreted as the log odds of the ETF being a winning fund if all independent variables are zero.

如题

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星星_品职助教 · 2022年12月11日

同学你好，

logistic regression的intercept代表的是“event happens”时的log odds，也就是Y=1时的情况。

在本题中，“event”指的是 是否为winning fund，即“event happen”代表fund winning时的情况。或者直接看Y=1对应的是winning。

“average”对应的是not happen，或者说是Y=0时的情况。

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本题被分类为了CPA 会计，提问时请选择正确的科目标签。

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