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ruby5ltc · 2023年08月20日

请问C为什么错

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NO.PZ202304050200003203

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.

C为什么错

1 个答案

星星_品职助教 · 2023年08月21日

同学你好,

logistic regression中的截距项是 当所有自变量都为0时,“event happened”即Y=1时的log odds。本题中的Y=1对应的是winning的情况。


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