Dell E20-007 Exam Questions

Question 6 of 165

When creating a presentation for a technical audience, what is the main objective?

Show that you met the project goals

Show how you met the project goals

Show if the model will meet the SLA

Show the technique to be used in the production environment

Correct Answer: B

Question 7 of 165

Your company has 3 different sales teams. Each team's sales manager has developed incentive offers to increase the size of each sales transaction. Any sales manager whose incentive program can be shown to increase the size of the average sales transaction will receive a bonus.
Data are available for the number and average sale amount for transactions offering one of the incentives as well as transactions offering no incentive.
The VP of Sales has asked you to determine analytically if any of the incentive programs has resulted in a demonstrable increase in the average sale amount.
Which analytical technique would be appropriate in this situation?

One-way ANOVA

Multi-way ANOVA

Student's t-test

Wilcoxson Rank Sum Test

Correct Answer: A

Question 8 of 165

In data visualization, what is used to focus the audience on a key part of a chart?

Emphasis colors

Detailed text

Pastel colors

A data table

Correct Answer: A

Question 9 of 165

Which word or phrase completes the statement? Data-ink ratio is to data visualization as __________ .

Confusion matrix is to classifier

Data scientist is to big data

Seasonality is to ARIMA

K-means is to Naive Bayes

Correct Answer: A

Question 10 of 165

Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
You decide to run the association rules algorithm where minimum support is 50%. Which rule has a confidence at least 50%?

{cheese} => {bread}

{juice} => {cheese}

{milk} => {soda}

{soda} => {milk}

Correct Answer: A