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huangme7 · 2024年03月10日

问题

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NO.PZ202208220100000508

问题如下:

Based on the output for Logistic Regression 1 in the table below, which of the following alternatives is closest to the probability that any ETF will be a winning fund?


选项:

A.

6.75%

B.

5.96%

C.

5.67%

解释:

C is correct. We calculate the probability that an that an ETF will be a winning fund by using the variable estimates and the average values of the independent variables. Using the equation for the probability, where we have seven independent variables,


Using the mean values and coefffcient estimates of the independent variables, the probability of the average ETF being a winner is


This implies that for an ETF with the average values of the independent variables, there is a 5.67% probability that it will be a winning ETF.

请问这个公式哪里有讲过?

exp在公式里是什么意思?

1 个答案

品职助教_七七 · 2024年03月10日

嗨,从没放弃的小努力你好:


exp就是e的多少次方。如exp(a)就是e的a次方,e^a的意思。

公式如下:

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加油吧,让我们一起遇见更好的自己!

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