Wgu D468 – Discovering Data Pa And Oa | Exam Questions And Correct Answers | Latest Version 2026/2027

WGU D468 – DISCOVERING DATA PA AND OA |
EXAM QUESTIONS AND CORRECT ANSWERS |
LATEST VERSION 2026/2027




Wgu D468 Discovering Data Pa And Oa




1. What is data?
ANSWER : Data is a collection of raw facts, observations,
measurements, or recorded information that can be analyzed to
produce useful knowledge.
2. What is information?
ANSWER : Information is data that has been processed, organized,
or interpreted so that it has meaning and supports understanding.
3. What is data analysis?
ANSWER : Data analysis is the process of examining, cleaning,
transforming, and interpreting data to discover useful patterns and
support decisions.
4. What is the difference between data and information?
ANSWER : Data consists of raw facts, while information is
processed data that provides meaning or context.
5. What is a dataset?
ANSWER : A dataset is an organized collection of related data.
6. What is a data point?
ANSWER : A data point is one individual observation or recorded
value within a dataset.

,7. What is a variable?
ANSWER : A variable is a characteristic or attribute that can take
different values among observations.
8. What is an observation?
ANSWER : An observation is a single recorded instance of data
about a person, object, event, or measurement.
9. What is structured data?
ANSWER : Structured data is organized according to a predefined
format, such as rows and columns in a relational database.
10. What is unstructured data?
ANSWER : Unstructured data does not follow a predefined tabular
structure and can include documents, images, audio, and video.
11. What is semi-structured data?
ANSWER : Semi-structured data has some organizational structure
but does not conform to a rigid relational table format.
12. What is metadata?
ANSWER : Metadata is data that describes other data, such as its
source, format, meaning, creation date, or owner.
13. What is a data source?
ANSWER : A data source is the origin from which data is obtained.
14. What is primary data?
ANSWER : Primary data is data collected directly by an individual
or organization for a specific purpose.
15. What is secondary data?
ANSWER : Secondary data is data originally collected by another
person or organization and reused for a different purpose.
16. What is quantitative data?
ANSWER : Quantitative data is numerical data that can be
measured or counted.
17. What is qualitative data?
ANSWER : Qualitative data describes characteristics, opinions,
categories, or experiences rather than numerical quantities.

, 18. What is categorical data?
ANSWER : Categorical data places observations into distinct groups
or categories.
19. What is numerical data?
ANSWER : Numerical data represents quantities using numbers.
20. What is discrete data?
ANSWER : Discrete data consists of countable values, usually whole
numbers.
21. What is continuous data?
ANSWER : Continuous data can take any value within a range and
is usually obtained through measurement.
22. What is a population in statistics?
ANSWER : A population is the complete group of individuals,
objects, or observations being studied.
23. What is a sample?
ANSWER : A sample is a subset of a population selected for
analysis.
24. Why are samples used?
ANSWER : Samples are used because studying an entire population
may be too expensive, time-consuming, or impractical.
25. What is a parameter?
ANSWER : A parameter is a numerical characteristic describing an
entire population.
26. What is a statistic?
ANSWER : A statistic is a numerical characteristic calculated from a
sample.
27. What is a census?
ANSWER : A census collects information from every member of a
population.
28. What is data mining?
ANSWER : Data mining is the process of discovering patterns,
relationships, and useful information from large datasets.