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A00-240 Exam Dumps - SAS Statistical Business Analysis SAS9: Regression and Model

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Question # 9

Refer to the confusion matrix:

Calculate the accuracy and error rate (0 - negative outcome, 1 - positive outcome)

A.

Accuracy = 58/102, Error Rate = 23/48

B.

Accuracy = 83/102, Error Rate = 67/102

C.

Accuracy = 25/150, Error Rate = 44/150

D.

Accuracy = 83/150, Error Rate = 67/150

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Question # 10

A marketing campaign will send brochures describing an expensive product to a set of customers. The cost for mailing and production per customer is $50. The company makes $500 revenue for each sale.

What is the profit matrix for a typical person in the population?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Question # 11

Refer to the exhibit:

On the Gains Chart, what is the correct interpretation of the horizontal reference line?

A.

the proportion of cases that cannot be classified

B.

the probability of a false negative

C.

the probability of a false positive

D.

the prior event rate

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Question # 12

One common approach for predicting rare events in the LOGISTIC procedure is to build a model that disproportionately over-re presents those cases with an event occurring (e.g. a 50-50 event/non-event split).

What problem does this present?

A.

All parameter estimates are biased.

B.

Only the intercept estimate is biased.

C.

Only the non-intercept parameter estimates are biased.

D.

Sensitivity estimates are biased.

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Question # 13

Refer to the REG procedure output:

How many observations are used in the analysis? Enter your numeric answer in the space below.

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Question # 14

Refer to the following exhibit:

What is a correct interpretation of this graph?

A.

The association between the continuous predictor and the binary response is quadratic.

B.

The association between the continuous predictor and the log-odds is quadratic.

C.

The association between the continuous predictor and the continuous response is quadratic.

D.

The association between the binary predictor and the log-odds is quadratic.

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