IBM Certified Specialist C2090-930 sample questions

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A. The estimation method of coefficient is ordinary least squares.

B. Methods for variable entry and removal are Enter Stepwise, Forward, and Backward.

C. The calculation of the predictor importance is based on Regression Sum-of-Squares.

D. Adjusted R-Squared is not a measure for Goodness-of-Fit.

Answer: B,C

You need to export data using IBM SPSS Modeler Professional.

Which two nodes should be used to accomplish this task? (Choose two.)

A. Database

B. Select

C. Flat File

D. Filter

Answer: A,C

You have a large amount of data from which you want to build a model. Although many of the

records of data are complete, there are substantial amounts of records which contain missing data. The records containing incomplete information should be excluded from analysis.

Which node will exclude the undesired records?

A. Filler node

B. Filter node

C. Select node

D. Aggregate node

Answer: B

You have a data set with numeric fields (columns) that contain null values. You want to replace each of these null values with the value of zero.

Which node will you use to accomplish this task?

A. Type node

B. Filler node

C. Filter node

D. Binning node

Answer: B

You have a data source which provides many fields needed for data scoring. Some of these fields are not needed after the scoring is complete for the rest of the stream to operate.

Which node should be used to remove these fields?

A. Filter node

B. Select node

C. Sample Node

D. Type node

Answer: A

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