DA0-002 Data Governance Practice Question
A data analyst creates a scatter plot showing the relationship between advertising spend and revenue. The plot shows a strong positive correlation. Which of the following should the analyst include in the report to ensure accurate communication?
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
✓
Include a note that correlation does not imply causation.
Correlation does not imply causation. It is important for the analyst to include this caveat to prevent misinterpretation of the relationship. Option B is incorrect because a bar chart is not appropriate for showing the relationship between two continuous variables. Option C is incorrect because removing outliers without justification can distort the analysis; outliers should be handled transparently. Option D is incorrect because while a trend line could be added, it is not mandatory and the question specifically asks for ensuring accurate communication, which is primarily about the correlation-causation warning.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Include a note that correlation does not imply causation.
Why this is correct
This prevents misinterpretation of the relationship.
- ✗
Replace the scatter plot with a bar chart.
Why it's wrong here
Bar chart is not appropriate for showing correlation.
- ✗
Remove any outliers from the plot.
Why it's wrong here
Removing outliers may distort the true relationship.
- ✗
Add a trend line to the scatter plot.
Why it's wrong here
A trend line is optional and does not address causation.
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