Problemconsider figure 512 the decile-wise lift chart for, Ask an Expert

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Problem

Consider Figure 5.12, the decile-wise lift chart for the transaction data model, applied to new data.

2308_Figure 5.12.jpg

a. Interpret the meaning of the first and second bars from the left.

b. Explain how you might use this information in practice.

c. Another analyst comments that you could improve the accuracy of the model by classifying everything as nonfraudulent. If you do that, what is the error rate?

d. Comment on the usefulness, in this situation, of these two metrics of model performance (error rate and lift).

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M92764967

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