When a Person Knowledgeable on the Subject of the Study

question 21

Multiple Choice

When a person knowledgeable on the subject of the study selects units that he or she feels are most representative of the population, the approach is called _____ sampling.

• A) stratified
• B) convenience
• C) judgment
• D) systematic

---

Definitions:

Categorical Data

Information that is divided into groups or categories which are mutually exclusive and cannot be ordered or ranked.

Categorical Data

Refers to data types that represent categories - they can be names, labels, or numbers that identify into which of several categories each data point falls.

Pivot Tables

A data summarization tool found in data visualization programs such as Excel, which can automatically sort, count, and total the data stored in one table or spreadsheet and create a second table displaying the summarized data.

Large Data Set

A collection of data that is so large and complex that traditional data processing applications are inadequate to deal with them.