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NEW QUESTION NO: 6
You have a dataset.
You need to repeatedly split randomly the dataset so that 80 percent of the data is used as a training set and the remaining 20 percent is used as a test set.
Which method should you use?
A. threshold
B. binary classification
C. imputation
D. cross validation
E. pruning
Answer: D
Explanation/Reference:
Explanation:

NEW QUESTION NO: 7
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You need to calculate a measure of central tendency and variability for the variables in a dataset that is grouped by using another categorical variable.
What should you use?
A. the Describe package
B. the rxHistogram function
C. the rxSummary function
D. the rxQuantile function
E. the rxCube function
F. the summary function
G. the rxCrossTabs function
H. the ggplot2 package
Answer: C
Explanation/Reference:
Explanation:

NEW QUESTION NO: 8
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You need to evaluate the significance of coefficients that are produced by using a model that was estimated already.
Which function should you use?
A. rxPredict
B. rxLogit
C. summary
D. rxLinMod
E. rxTweedie
F. stepAic
G. rxTransform
H. rxDataStep
Answer: D
Explanation/Reference:
Explanation:
References: https://docs.microsoft.com/en-us/machine-learning-server/r/how-to-revoscaler-linear-model

NEW QUESTION NO: 9
DRAG DROP
You are using rxPredict for a logistic regression model.
You need to obtain prediction standard errors and confidence intervals.
Which R code segment should you use? To answer, drag the appropriate values to the correct targets.
Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Select and Place:

Answer: 

Explanation/Reference:
Explanation:
References: https://docs.microsoft.com/en-us/machine-learning-server/r/how-to-revoscaler-logistic- regression

NEW QUESTION NO: 10
You need to run a large data tree model by using rxDForest. The model must use cross validation.
Which rxDForest option should you use?
A. maxSurrogate
B. maxNumBins
C. maxDepth
D. maxCompete
E. xVal
Answer: E
Explanation/Reference:
Explanation:
References: https://docs.microsoft.com/en-us/machine-learning-server/r/how-to-revoscaler-decision-tree

NEW QUESTION NO: 11
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You need to generate a residual based on two columns. The solution must build a trend indicator.
Which function should you use?
A. rxPredict
B. rxLogit
C. summary
D. rxLinMod
E. rxTweedie
F. stepAic
G. rxTransform
H. rxDataStep
Answer: A
Explanation/Reference:
Explanation:
References:https://docs.microsoft.com/en-us/machine-learning-server/r-reference/revoscaler/rxpredict

NEW QUESTION NO: 12
You have an Apache Hadoop Hive data warehouse. RevoScalerR is not installed.
You need to sort the data according to the variables in the dataset.
What should you do?
A. Connect to the database by using an ODBC connection, and then use the rxSort function.
B. Create a table in the ORC file format.
C. Connect to the database by using an ODBC connection, and then use the rxDataStep function.
D. Execute a Hive query that sorts the data, and then reads the results.
Answer: D
Explanation/Reference:
Explanation:

NEW QUESTION NO: 13
You need to build a model that looks at the probability of an outcome. You must regulate between L1 and L2.
Which classification method should you use?
A. Two-Class Neutral Network
B. Two-Class Support Vector Machine
C. Two-Class Decision Forest
D. Two-Class Logistic Regression
Answer: D
Explanation/Reference:
Explanation:
References: https://msdn.microsoft.com/en-us/library/azure/dn905994.aspx

NEW QUESTION NO: 14
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this sections, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a Microsoft SQL Server instance that has R Services (In-Database) installed.
You need to monitor the R jobs that are sent to SQL Server.
Solution: You create an events trace configuration file and place the file in the same directory as the BXLServer process.
Does this meet the goal?
A. Yes
B. No
Answer: B
Explanation/Reference:
Explanation:

NEW QUESTION NO: 15
You have a dataset that has a character variable.
You need to create a bag of counts of n-grams.
Which function should you use?
A. featurizeText()
B. categoricalHash()
C. concat()
D. selectFeatures()
E. categorical()
Answer: A
Explanation/Reference:
Explanation:
References: https://docs.microsoft.com/en-us/machine-learning-server/python-reference/microsoftml/ featurize-text

NEW QUESTION NO: 16
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You need to estimate a model where the outcome variable is continuous, is in the range of [0, inf], and has a substantial mass at an exact value of 0.
Which function should you use?
A. rxPredict
B. rxLogit
C. summary
D. rxLinMod
E. rxTweedie
F. stepAic
G. rxTransform
H. rxDataStep
Answer: F
Explanation/Reference:
Explanation: