Data Visualization & Reporting Flashcards
7 cards from real DAC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Data Visualization & Reporting flashcards as text
Which chart type is most appropriate for showing the correlation between two continuous variables?
Answer: Scatter plot
A scatter plot plots two continuous variables against each other to reveal correlation.
A dashboard designer wants to reduce cognitive load. Which principle should guide the layout?
Answer: Follow a clear visual hierarchy
A clear visual hierarchy guides the eye to the most important information first, reducing cognitive load.
What is the primary risk of using a truncated y-axis (not starting at zero) on a bar chart?
Answer: It exaggerates differences between values
Truncating the y-axis visually exaggerates small differences and can mislead viewers.
In reporting, what does a 'drill-down' capability allow a user to do?
Answer: Navigate from summary data to more detailed data
Drill-down lets users move from aggregated summaries into finer levels of detail.
Which color consideration is most important for accessibility in dashboards?
Answer: Ensuring sufficient contrast and colorblind-safe palettes
Sufficient contrast and colorblind-safe palettes ensure charts are readable by all users.
A KPI card on a dashboard should primarily display what?
Answer: A single key metric with context like a trend or target
KPI cards highlight one important metric, often with a comparison or trend for context.
Which of the following best describes a heat map?
Answer: A chart showing values as color intensity across a matrix
A heat map encodes values as color intensity across a grid or matrix.