DA0-002 Data Acquisition and Preparation Practice Question
A dataset contains transaction amounts with a few extremely high values. The analyst wants to reduce the impact of these outliers on the average. Which measure of central tendency is most robust?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Median
Median is not affected by extreme values, while mean is sensitive.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Mean
Why it's wrong here
Mean is heavily influenced by outliers.
- ✓
Median
Why this is correct
Median is robust to outliers.
- ✗
Mode
Why it's wrong here
Mode is not a typical measure for continuous data with outliers.
- ✗
Standard deviation
Why it's wrong here
Standard deviation is also affected by outliers.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DA0-002 exam.