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Question ID 16170

Which activity might be performed in the Operationalize phase of the Data Analytics
Lifecycle?

Option A

Run a pilot

Option B

Try different analytical techniques

Option C

Try different variables

Option D

Transform existing variables

Correct Answer A
Explanation


Question ID 16171

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?

Option 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.

Option 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.

Option C

ACF as an indication of stationarity, and PACF to determine the correlation of X1 through Xk-1.

Option D

PACF as an indication of stationarity, and ACF to determine the correlation of X1 through Xk-1.

 

 

Correct Answer A
Explanation

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