PK0-005 Tools and Documentation Practice Question
A project manager is analyzing quality issues and wants to use tools that help identify and prioritize problems. Which TWO tools are appropriate for this purpose? (Select TWO.)
⚠ Common exam trap
CompTIA Project+ often tests the distinction between tools that identify causes (cause-and-effect diagram) versus tools that prioritize problems (Pareto chart), and candidates may mistakenly select a histogram or control chart because they are also common quality tools but serve different purposes.
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
✓
Pareto chart
A Pareto chart is a bar graph that displays the frequency of defects in descending order, combined with a cumulative percentage line. It helps identify the most significant quality issues by applying the 80/20 rule, allowing the project manager to prioritize problems that will yield the greatest improvement when addressed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Histogram
Why it's wrong here
Shows distribution, not cause identification or prioritization.
- ✓
Pareto chart
Why this is correct
Prioritizes problems to focus on the vital few.
- ✓
Cause-and-effect diagram
Why this is correct
Helps identify root causes of problems.
- ✗
Control chart
Why it's wrong here
Control chart monitors process stability, not identify causes.
- ✗
Scatter diagram
Why it's wrong here
Shows relationship between two variables, not prioritization.
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