File Info
| Exam | SAS Statistical Business Analysis SAS9: Regression and Model |
| Number | A00-240 |
| File Name | SASInstitute.A00-240.Pass4Sure.2018-12-11.38q.tqb |
| Size | 2 MB |
| Posted | Dec 11, 2018 |
| Download | SASInstitute.A00-240.Pass4Sure.2018-12-11.38q.tqb |
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Demo Questions
Question 1
Refer to the lift chart:
At a depth of 0.1, Lift = 3.14. What does this mean?
- Selecting the top 10% of the population scored by the model should result in 3.14 times more events than a random draw of 10%.
- Selecting the observations with a response probability of at least 10% should result in 3.14 times more events than a random draw of 10%.
- Selecting the top 10% of the population scored by the model should result in 3.14 times greater accuracy than a random draw of 10%.
- Selecting the observations with a response probability of at least 10% should result in 3.14 times greater accuracy than a random draw of 10%.
Correct answer: A
Question 2
Refer to the lift chart:
What does the reference line at lift = 1 corresponds to?
- The predicted lift for the best 50% of validation data cases
- The predicted lift if the entire population is scored as event cases
- The predicted lift if none of the population are scored as event cases
- The predicted lift if 50% of the population are randomly scored as event cases
Correct answer: B
Question 3
Refer to the exhibit:
The plots represent two models, A and B, being fit to the same two data sets, training and validation.
Model A is 90.5% accurate at distinguishing blue from red on the training data and 75.5% accurate at doing the same on validation data. Model B is 83% accurate at distinguishing blue from red on the training data and 78.3% accurate at doing the same on the validation data.
Which of the two models should be selected and why?
- Model A. It is more complex with a higher accuracy than model B on training data.
- Model A. It performs better on the boundary for the training data.
- Model B. It is more complex with a higher accuracy than model A on validation data.
- Model B. It is simpler with a higher accuracy than model A on validation data.
Correct answer: D
