Data Driven Decision Making
OA PRE-TEST GUIDE
© WGU 2024/2025
,1. Question: What is the primary benefit of using predictive
analytics in business decision-making?
A) Reduces data storage costs
B) Automates customer service
C) Anticipates future trends
D) Enhances brand appearance
Answer: C) Anticipates future trends
Rationale: Predictive analytics help organizations forecast
future events based on historical data, thereby enabling proactive
decision-making.
2. Question: Which of the following is NOT a common
technique used in data mining?
A) Regression Analysis
B) Classification
C) Neural Networks
D) SWOT Analysis
Answer: D) SWOT Analysis
© WGU 2024/2025
, Rationale: SWOT Analysis is a strategic planning tool, not a
data mining technique.
3. Question: In the context of big data, what does the "Variety"
dimension refer to?
A) The amount of data
B) The different types of data
C) The speed at which data is processed
D) The authenticity of data
Answer: B) The different types of data
Rationale: "Variety" refers to the different formats and types of
data, such as structured, semi-structured, and unstructured data.
4. Question: Which model is primarily used for anomaly
detection in data analysis?
A) Linear Regression
B) Decision Trees
C) K-Means Clustering
D) Support Vector Machines
Answer: C) K-Means Clustering
© WGU 2024/2025