CompTIA
PK0-004 · Question #213
PK0-004 Question #213: Real Exam Question with Answer & Explanation
The correct answer is A: Ishikawa diagram. The Ishikawa diagram is the standard tool for root cause analysis, mapping potential causes across categories to a central problem or effect.
Question
Which of the following is used to perform a root cause analysis?
Exhibit
Options
- AIshikawa diagram
- BBar chart
- CPareto diagram
- DScatter plot
Explanation
The Ishikawa diagram is the standard tool for root cause analysis, mapping potential causes across categories to a central problem or effect.
Common mistakes.
- B. A bar chart displays and compares categorical data quantities and is not designed to analyze causal relationships or root causes.
- C. A Pareto diagram applies the 80/20 rule to identify which problems occur most frequently, showing what to prioritize rather than explaining why problems occur.
- D. A scatter plot reveals correlation between two numerical variables but does not establish or map cause-and-effect relationships.
Concept tested. Root cause analysis using Ishikawa fishbone diagram
Reference. https://asq.org/quality-resources/fishbone
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