DA0-002 Visualization and Reporting Practice Question
An analyst is choosing a chart to show the correlation between two continuous variables. Which TWO chart types could be used? (Select two.)
⚠ Common exam trap
A common misconception in data visualization is that a histogram can show relationships between two variables, but it only displays the frequency distribution of a single continuous variable. For the Data+ exam, remember that scatter plots and bubble charts are appropriate for showing correlation between two continuous variables.
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
✓
Bubble chart
A bubble chart is an extension of a scatter plot that can show the correlation between two continuous variables on the x- and y-axes, while a third variable is represented by the size of the bubbles. For the specific purpose of showing correlation between exactly two continuous variables, the bubble chart is valid because the bubble size is optional and does not interfere with the primary x-y relationship. This makes it a correct choice for visualizing the relationship between two continuous variables.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Bubble chart
Why this is correct
Bubble charts are scatter plots with a third variable; they also show correlation.
- ✓
Scatter plot
Why this is correct
Scatter plots directly show correlation.
- ✗
Pie chart
Why it's wrong here
Pie charts show proportions, not correlation.
- ✗
Waterfall chart
Why it's wrong here
Waterfall charts show incremental changes.
- ✗
Histogram
Why it's wrong here
Histograms show distribution of a single variable.
Go deeper
Related to this question
About these practice questions
Courseiva writes every DA0-002 question from scratch — 986 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA 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 DA0-002 exam.