DA0-002 Data Acquisition and Preparation Practice Question
A data analyst needs to sample records from a large dataset for a quick analysis. Which TWO sampling methods are examples of probability sampling?
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
✓
Simple random sampling
Simple random sampling and systematic sampling are probability-based methods where every element has a known chance of selection.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Snowball sampling
Why it's wrong here
Snowball sampling is non-probability.
- ✓
Simple random sampling
Why this is correct
Every element has an equal probability of selection.
- ✓
Systematic sampling
Why this is correct
Selects every kth element, a probability method.
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Convenience sampling
Why it's wrong here
Convenience sampling is non-probability.
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Quota sampling
Why it's wrong here
Quota sampling is non-probability.
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Written by Johnson Ajibi, MSc IT Security
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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.