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E20-007 Exam Questions

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E20-007 | You are attempting to find…

Questions : 10

You are attempting to find the Euclidean distance between two centroids:

Centroid A’s coordinates: (X = 2, Y = 4)

Centroid B’s coordinates (X = 8, Y = 10)

Which formula finds the correct Euclidean distance?

A. SQRT((2-8)2+(4-10)2) or 8.49
B. SQRT(((2-8) x 2) + ((4-10) x 2)) or 12.17
C. ((2-8)2+(4-10)2) or 72
D. ((2-8) x 2 + (4-10) x 2) or 148

Answer: A

E20-007 Dumps | What describes a true…

Question : 9

What describes a true limitation of Logistic Regression method?

A. It does not handle missing values well.
B. It does not handle redundant variables well.
C. It does not handle correlated variables well.
D. It does not have explanatory values.

Answer: A

E20-007 | You are testing two new weight-gain formulas…

Question: 6

You are testing two new weight-gain formulas for puppies. The test gives the results:
Control group: 1% weight gain
Formula A. 3% weight gain
Formula B. 4% weight gain
A one-way ANOVA returns a p-value = 0.027
What can you conclude?

A. Either Formula A or Formula B is effective at promoting weight gain.
B. Formula B is more effective at promoting weight gain than Formula A.
C. Formula A and Formula B are both effective at promoting weight gain.
D. Formula A and Formula B are about equally effective at promoting weight gain.

Answer: A

E20-007 | Which word or phrase completes the statement…

Question: 3

Which word or phrase completes the statement? A spreadsheet is to a data island as a centralized database for reporting is to a ________?

A. Data Warehouse
B. Data Repository
C. Analytic Sandbox
D. Data Mart

Answer: A

E20-007 | You are analyzing a time series and want to determine…

Question: 2

You are analyzing a time series and want to determine its stationarity. You also want to determine the order of autoregressive models. How are the autocorrelation functions used?

A. ACF as an indication of stationarity,and PACF for the correlation between Xt and Xt-k not explained by their mutual correlation with X1 through Xk-1.
B. PACF as an indication of stationarity,and ACF for the correlation between Xt and Xt-k not explained by their mutual correlation with X1 through Xk-1.
C. ACF as an indication of stationarity,and PACF to determine the correlation of X1 through Xk-1.
D. PACF as an indication of stationarity,and ACF to determine the correlation of X1 through Xk-1.

Answer: A

E20-007 | If your intention is to show trend…

Question: 1

If your intention is to show trends over time, which chart type is the most appropriate way to depict the data?

A. Line chart
B. Bar chart
C. Stacked bar chart
D. Histogram

Answer: A