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
Which chart type is best for showing the distribution of a single continuous variable?
Answer: Histogram
A histogram displays the frequency distribution of continuous data by grouping values into bins.
What does a scatter plot primarily show?
Answer: Relationship between two numeric variables
A scatter plot displays the correlation or relationship between two continuous numeric variables using dots.
Which visualization tool is most commonly used for business intelligence dashboards in the US?
Answer: Tableau
Tableau is the leading BI dashboard tool in the US enterprise market, known for its drag-and-drop interface and interactive dashboards.
What is a heat map used to represent?
Answer: Magnitude of values across two dimensions using color intensity
A heat map encodes data values as color intensity across a matrix, making it easy to spot patterns and outliers.
Which principle of data visualization does Edward Tufte's 'data-ink ratio' emphasize?
Answer: Maximizing the proportion of ink used to display data
Tufte's data-ink ratio advocates removing all non-essential chart elements to maximize the proportion of ink conveying actual data.
What chart type is most appropriate for comparing parts of a whole across multiple categories?
Answer: Stacked bar chart
A stacked bar chart shows how each category's total is composed of subcategories, enabling part-to-whole comparisons.