Data Visualization Flashcards
6 cards from real Data and Analytics 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 flashcards as text
What does a box plot (box-and-whisker plot) display?
Answer: Distribution summary including median, quartiles, and outliers
A box plot shows the five-number summary (minimum, Q1, median, Q3, maximum) and visually highlights outliers.
Which color scale is recommended for sequential data with a meaningful zero point?
Answer: Sequential single-hue scale
A sequential single-hue scale uses varying lightness of one color to represent ordered data, making magnitude differences clear.
What is the main purpose of a dashboard in data analytics?
Answer: To provide a real-time overview of key metrics in one view
A dashboard consolidates key performance indicators and metrics into a single, at-a-glance interface for monitoring business health.
What is a KPI in the context of data visualization?
Answer: Key Performance Indicator
A KPI (Key Performance Indicator) is a measurable value that demonstrates how effectively a company is achieving key business objectives.
Which type of chart is best for showing data trends over time?
Answer: Line chart
A line chart connects data points chronologically, making it ideal for visualizing trends, patterns, and changes over time.
What is a treemap visualization used for?
Answer: Displaying hierarchical data as nested rectangles sized by value
A treemap displays hierarchical data as nested rectangles, where rectangle size represents a quantitative variable.