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DA0-002 Visualization and Reporting Practice Question

A data analyst in a healthcare organization needs to visualize patient wait times across different departments. The data includes department names (categorical), wait times in minutes (continuous), and time of day. Which THREE chart types could be effectively used to explore this data?

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

✓

Scatter plot

Box plots show distribution and outliers; scatter plots can show wait time vs. time of day; heat maps can show average wait time by department and time period. Histograms show distribution of a single variable, funnel charts are for pipelines.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    Funnel chart

    Why it's wrong here

    Designed for sequential stages, not for wait time analysis.

  • ✓

    Scatter plot

    Why this is correct

    Can show relationship between time of day and wait time.

  • ✗

    Histogram

    Why it's wrong here

    Shows distribution of wait times overall, but not by department or time.

  • ✓

    Heat map

    Why this is correct

    Can display average wait time by department and time period.

  • ✓

    Box plot

    Why this is correct

    Can show distribution of wait times per department.

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