SAS A00-240 Q58 求解惑

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QUESTION NO: 58

SAS Institute A00-240 Exam

Refer to the exhibit:

An analyst examined logistic regression models for predicting whether a customer would make a

purchase. The ROC curve displayed summarizes the models. Using the selected model and the

analyst's decision rule, 25% of the customers who did not make a purchase are incorrectly

classified as purchasers.

What can be concluded from the graph?

A. About 25% of the customers who did make a purchase are correctly classified as making a

purchase.

B. About 50% of the customers who did make a purchase are correctly classified as making a

purchase.

C. About 85% of the customers who did make a purchase are correctly classified as making a

purchase.

D. About 95% of the customers who did make a purchase are correctly classified as making a

purchase.

Answer: C

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关键词：regression predicting correctly customers summarize customers purchase selected whether

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