DA0-002 Visualization and Reporting Practice Question
When communicating uncertainty in a report, which of the following is the most appropriate way to convey the reliability of a survey result showing 75% customer satisfaction?
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
✓
"We are 95% confident that the true satisfaction rate is between 72% and 78%."
Confidence intervals are standard for communicating uncertainty around a point estimate.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
"The satisfaction rate might be lower or higher."
Why it's wrong here
Vague and not quantitative.
- ✗
"75% of customers are satisfied."
Why it's wrong here
No expression of uncertainty; implies perfect precision.
- ✓
"We are 95% confident that the true satisfaction rate is between 72% and 78%."
Why this is correct
Provides a confidence interval, clearly expressing uncertainty.
- ✗
"The margin of error is 3%."
Why it's wrong here
While partially correct, a confidence interval gives a more complete picture.
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