PL-300 Visualize and analyze the data Practice Question
You need to create a visual that shows the relationship between advertising spend and website traffic. Which type of visual is most appropriate?
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 chart
Scatter charts are ideal for showing relationships between two numeric variables. A line chart shows trends over time, a bar chart compares categories, and a pie chart shows proportions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Stacked bar chart
Why it's wrong here
A stacked bar chart is designed for categorical comparisons and part-to-whole composition, where segments are layered within bars to show totals across groups. It does not establish a relationship between two numeric measures because there is no continuous x-y coordinate mapping; instead, values are aggregated by category, making it impossible to see how one measure varies with another at the point level.
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Pie chart
Why it's wrong here
A pie chart partitions a circle into slices to illustrate the proportional breakdown of a single measure across categories. It has no axes for continuous numeric variables, so you cannot plot one measure on an x-axis and another on a y-axis; therefore it cannot reveal correlation or the directional relationship between two measures.
- ✓
Scatter chart
Why this is correct
A scatter chart is the only visual among these that plots two numeric measures as x-y coordinates, with each data point representing an individual observation. By showing the distribution, clustering, and trend of points, it directly reveals whether a relationship or correlation exists between the measures, and Power BI's analytics pane can overlay a trend line to quantify the strength and direction.
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Line chart
Why it's wrong here
A line chart connects data points in sequence, which typically implies a time series or ordered categorical progression along the x-axis. While it can plot two measures, its primary purpose is showing trends over time rather than exposing a relationship between two continuous variables; using it for correlation would be misleading because the line implies continuity that may not exist between independent observations.
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This PL-300 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PL-300 exam.