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EMC Associate - Data Science and Big Data Analytics v2 Exam Sample Questions (Q31-Q36):

NEW QUESTION # 31

You have created a Linear Regression model to predict total sales based on variables M, N, P and Q as shown in the graphic. You originally expected all variables to have positive coefficients. Which action would you take?
Response:

A. Accept only positive variables and investigate potential correlation with the dependent variable
B. Accept only statistically significant variables and investigate correlated independent variables
C. Accept all variables and begin model validation steps against holdout data
D. Accept none of the variables and investigate correlations between all variables

Answer: D

NEW QUESTION # 32

You have run a Linear Regression model on the data shown in the graphic. Which value is a reasonable guess for R-squared?
Response:

A. -.8
B. .8
C. .25
D. 1.25

Answer: B

NEW QUESTION # 33
Which word or phrase completes the statement; "Discovering relationships is to Association Rules as generating forecasts is to __________."?
Response:

A. Time Series Analysis
B. Clustering
C. Classification
D. Text Analysis

Answer: A

NEW QUESTION # 34
In a decision tree, what is an example of a pure node?
Response:

A. 50 positives; 50 negatives
B. 75 positives; 25 negatives
C. 100 positives; 0 negatives
D. 25 positives; 75 negatives

Answer: C

NEW QUESTION # 35
Refer to the exhibit.

What provides the decision tree for predicting whether or not someone is a good or bad credit risk. What would be the assigned probability, p(good), of a single male with no known savings?
Response:

A. 0.498
B. 0.83
C. 0
D. 0.6

Answer: B

NEW QUESTION # 36
......

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Reliable DEA-7TT2 Braindumps Ppt & DEA-7TT2 New Real Exam

100% Pass Quiz Reliable DEA-7TT2 Braindumps Ppt - Unparalleled Associate - Data Science and Big Data Analytics v2 Exam New Real Exam

EMC Associate - Data Science and Big Data Analytics v2 Exam Sample Questions (Q31-Q36):

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