E20-007 무료 덤프문제 온라인 액세스

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

• A.Define the process to maintain the model
• B.Try different variables
• C.Try different analytical techniques
• D.Transform existing variables

Refer to exhibit.

You are asked to write a report on how specific variables impact your client's sales using a data set provided to you by the client. The data includes 15 variables that the client views as directly related to sales, and you are restricted to these variables only.
After a preliminary analysis of the data, the following findings were made:
1.Multicollinearity is not an issue among the variables
2.Only three variables-A, B, and C-have significant correlation with sales
You build a linear regression model on the dependent variable of sales with the independent variables of A, B, and C. The results of the regression are seen in the exhibit.
You cannot request additional datA. what is a way that you could try to increase the R2 of the model without artificially inflating it?

• A.Force all 15 variables into the model as independent variables
• B.Create clusters based on the data and use them as model inputs
• C.Break variables A,B,and C into their own univariate models
• D.Create interaction variables based only on variables A,B,and C

Refer to the exhibit.

Click on the calculator icon in the upper left corner. You are given a list of pre-defined association rules:
A) RENTER => BAD CREDIT B) RENTER => GOOD CREDIT C) HOME OWNER => BAD CREDIT D) HOME OWNER => GOOD CREDIT E) FREE HOUSING => BAD CREDIT F) FREE HOUSING => GOOD CREDIT
For your next analysis, you must limit your dataset based on rules with confidence greater than 60%.
Which of the rules will be kept in the analysis?

• A.Rules D and E
• B.Rules A and F
• C.Rules B and D
• D.Rules C and E

You have been assigned to do a study of the daily revenue effect of a pricing model of online transactions. When have you completed the analytics lifecycle?

• A.You have a completely developed model based on both a sample of the data and the entire set of data available.
• B.You have written documentation,and the code has been handed off to the Data Base Administrator and business operations.
• C.You have a completely developed model,and the results have shown statistically acceptable results.
• D.You have presented the results of the model to both the internal analytics team and the business owner of the project.

What describes the use of UNION clause in a SQL statement?

• A.Operates on queries and potentially decreases the number of rows
• B.Operates on both tables and queries and potentially increases both the number of rows and columns
• C.Operates on tables and potentially decreases the number of columns
• D.Operates on queries and potentially increases the number of rows