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OMIS 482 - Final questions well answered to pass
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OMIS 482 - Final questions well answered to pass
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OMIS 482 - FinalWhich of the following is not a planning task? - correct answer ✔✔Analyzing the data
True/False: In SAS, in order to use textual data, it needs to be converted into a numeric for first. - correct
answer ✔✔TRUE
True/False: Ordinal=discrete=polychotomous. - correct answer ✔✔TRUE
Before modeling, we must verify that the sample is a good representation of the target universe. How
can we do this? - correct answer ✔✔Compare the distribution of key variables in the sample and target
universe.
True/False: One of the pre-processing activities is to eliminate any variables with highly skewed
distributions. - correct answer ✔✔TRUE
True/False: You should always include AOV16 variables when possible because those variables can be
eliminated later anyways. - correct answer ✔✔TRUE
_______________ measures the effectiveness of a predictive model. - correct answer ✔✔Lift
Which of the following transformations can be used on categorical inputs? - correct answer ✔✔Group
Rare Levels
___________________ is calculated from the p-values of the chi-squared stats. - correct answer
✔✔Variable worth
What are AOV16 variables? - correct answer ✔✔Binned variables of each interval variable.
__________________ data is used to develop the model. - correct answer ✔✔Training
, __________________ data is used to evaluate different models created before and select the best one. -
correct answer ✔✔Validation
___________________ data is used to independently assess the selected model. - correct answer
✔✔Test
True/False: Using principal components results in no collinearity. - correct answer ✔✔TRUE
___________________ are equal to the statistical variance of the new components. - correct answer
✔✔Eigenvalues.
True/False: The variable selection node selects inputs using both the training and validation data sets. -
correct answer ✔✔FALSE
Why is it not good to routinely use the filter node? - correct answer ✔✔You want to find out the reason
for the outliers it is eliminating first.
The first node in any diagram is: - correct answer ✔✔Input Data
Node used to drop variables from the data set or metadata. - correct answer ✔✔Drop Node
Node used to partition data into training, validation and test data. - correct answer ✔✔Data Partition
Node
Node used to incorporate SAS procedure and external SAS code into the process flow of the project. -
correct answer ✔✔SAS Code Node
Used to combine the different data sets within a project. It combines data as a side-by-side combination.
- correct answer ✔✔Merge Node
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