求问一道SAS题

yinshf_04

1404

收藏 2015-08-13

悬赏 1 个论坛币未解决

讨论一道SAS Statistic真题

A logistic regression model was fit on a data set where 40% of the outcomes were events (TARGET=1) and 60% were non-events (TARGET=0). The analyst knows that the population where the model will be deployed has 5% events and 95% non-events. The analyst also knows that the company's profit margin for correctly targeted events is nine times higher than the company's loss for incorrectly targeted non-event.
Given the following SAS program：

proc logistic data = LOANS des;
model Purchase = Inc Edu;
score data = LOANS_V out = LOANS_VS priorevent = (insert X here);
run;

data LOANS_VS;
set LOANS_VS;
Solicit = P_1 > (insert Y here)
run;

What X and Y values should be added to the program to correctly score the data?
A. X=40, Y=10
B. X=.05, Y=10
C. X=.05, Y=.40
D. X=.10.Y=05

求问那个Y是怎么算的呢？

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