Data Visualization & Communication Flashcards
6 cards from real CBDA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Data Visualization & Communication flashcards as text
Which chart type is BEST suited for showing the distribution of a single continuous variable in a business data report?
Answer: Histogram
A histogram displays the frequency distribution of a continuous variable by grouping values into bins.
When presenting findings to non-technical executives, a CBDA analyst should prioritize which of the following?
Answer: Clear visual narratives tied to business outcomes
Non-technical audiences need insights framed around business impact, not technical details.
A scatter plot with a trend line is MOST useful for communicating which type of relationship?
Answer: Correlation between two continuous variables
Scatter plots with trend lines reveal the direction and strength of correlation between two continuous variables.
Which color practice is recommended when designing accessible data visualizations for business reports?
Answer: Use color-blind-safe palettes supplemented by labels or patterns
Color-blind-safe palettes with supporting labels or patterns ensure all audience members can interpret the visualization.
What is 'data ink ratio' as defined by Edward Tufte and why does it matter for CBDA analysts?
Answer: The proportion of ink used to convey information versus decorative elements
A high data-ink ratio means most visual elements serve to convey information, reducing chartjunk and improving clarity.
A business analyst needs to compare sales performance across 12 months for five product lines. Which visualization is MOST appropriate?
Answer: A grouped or stacked line chart with one line per product
A multi-line chart allows direct comparison of trends across all five product lines over the same time axis.