scatter diagram
MediumAcademic/Technical
Definition
Meaning
A graph in which the values of two variables are plotted along two axes; the pattern of the resulting points reveals any correlation present.
A visual data representation used in statistics to show the relationship between two quantitative variables, often as a preliminary step in identifying trends or calculating correlation coefficients.
Linguistics
Semantic Notes
Specifically denotes a type of plot used for bivariate data analysis. The term is unambiguous and domain-specific, primarily used in statistics, science, and business analytics.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling of related terms may differ (e.g., 'analyse' vs. 'analyze').
Connotations
Neutral technical term in both varieties.
Frequency
Equally common in academic and professional contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
The scatter diagram [of X and Y] reveals...A scatter diagram [showing the relationship between X and Y]...Vocabulary
Synonyms
Strong
Neutral
Weak
Usage
Context Usage
Business
Used in market research and quality control to visualise relationships between variables, such as advertising spend and sales revenue.
Academic
A fundamental tool in statistics and research methods courses for teaching correlation and regression analysis.
Everyday
Rarely used in casual conversation. Might be encountered in news articles about scientific studies or data journalism.
Technical
Standard term in statistics, data science, engineering, and the natural sciences for exploratory data analysis.
Examples
By CEFR Level
- The teacher drew a scatter diagram on the board.
- We made a scatter diagram to see if study time and test scores were linked.
- The scatter diagram displayed a clear positive correlation between engine size and fuel consumption.
- Prior to performing a linear regression, the analyst inspected the scatter diagram for heteroscedasticity and outliers.
Learning
Memory Aids
Mnemonic
Think of 'scattering' seeds on the ground — a scatter diagram shows data points 'scattered' across a graph.
Conceptual Metaphor
A DATA SET IS A LANDSCAPE (points scattered across the graph's terrain, revealing patterns like hills or valleys).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- The term is a direct calque ('диаграмма рассеяния'). This is the standard translation, but learners may incorrectly try to translate 'scatter' as 'разброс' in isolation, leading to an unnatural phrase.
Common Mistakes
- Using 'scatter diagram' for a graph showing a time series (use 'line graph').
- Pronouncing 'scatter' as /ˈskɑːtə/ instead of /ˈskætə/.
Practice
Quiz
What is the primary purpose of a scatter diagram?
FAQ
Frequently Asked Questions
No. A scatter diagram plots individual data points for two variables to show correlation. A line graph typically shows how one variable changes over time, connecting the points with lines.
No, a scatter diagram by itself only shows correlation or association. It cannot prove that one variable causes changes in another; further statistical analysis and experimental design are required to infer causation.
This indicates a strong positive correlation: as one variable increases, the other tends to increase proportionally.
Use a scatter diagram for exploring relationships between two continuous numerical variables (e.g., height and weight). Use a bar chart to compare quantities across different discrete categories (e.g., sales per region).