SAS Exam A00-240 Topic 9 Question 106 Discussion

Actual exam question for SAS's A00-240 exam

Question #: 106
Topic #: 9

[All A00-240 Questions]

Refer to the ROC curve:

As you move along the curve, what changes?

AThe priors in the population

BThe true negative rate in the population

CThe proportion of events in the training data

DThe probability cutoff for scoring

Show Suggested Answer

Suggested Answer: C

by Kanisha at Jan 25, 2025, 05:01 PM

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Bonita

Ha! The priors in the population? That's a good one. As if the ROC curve is going to be affected by the underlying population distribution. That's just silly.

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Ben

8 days ago

The true negative rate in the population is definitely not the right answer here. That's more about the base rate of the target variable, not the performance of the model.

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Hortencia

13 days ago

I'm not sure, but I think it might also be C) The proportion of events in the training data.

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Doug

14 days ago

I agree with Donte, as you move along the curve, the probability cutoff for scoring changes.

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I think it's the proportion of events in the training data that changes as you move along the ROC curve. The more events you have, the better your model can discriminate between positive and negative cases.

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Donte

16 days ago

I think the answer is D) The probability cutoff for scoring.

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Youlanda

18 days ago

The ROC curve shows the trade-off between the true positive rate and the false positive rate, so as you move along the curve, the probability cutoff for scoring must be changing. I'm pretty sure that's the right answer.

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Maynard

4 days ago

I think the probability cutoff for scoring changes as you move along the ROC curve.

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SAS Exam A00-240 Topic 9 Question 106 Discussion

Contribute your Thoughts:

Bonita

Ben

Hortencia

Doug

Na

Donte

Youlanda

Maynard