1._______ mark the split between one class and another.

Group of answer choices

Decision boundaries

Decision trees

Linear classifiers

Identifying questions

2.A data dictionary is paramount in helping database administrators do which of the following?

Group of answer choices

Maintain databases.

Identify the data they need to use.

Communicating insights.

Track outcomes

3.Comparing the number of records within the data is an example of which of the following?

Group of answer choices

Validating the data for completeness

Cleaning the data

Obtaining the data

Validating the data for integrity

4.Which of the following best describes the purpose of a non-key attribute?

Group of answer choices

To provide business information

To create the relationship between two tables

To ensure that each row in the table is unique

To support business processes across the organization

5.Which of the following best describes the data analytics skill of data visualization and data reporting?

Group of answer choices

report results of analysis in an accessible way to each varied decision maker and their specific needs

recognize what is meant by data quality, be it completeness, reliability or validity

recognize when and how data analytics can address business questions

perform basic analysis to understand the quality of the underlying data and its ability to address the business question