A scattergraph shows the relationship between two variables using a sample of data points
A line graph shows the relationship between two continuous variables as they change using data points connected with line segments
A histogram shows the distribution of data using samples that are grouped into bars of proportional area
A bar chart compares a categorical variable by using proportional-length bars that can be horizontal or vertical
A grouped bar chart presents bars in groups according to different criteria
A stacked bar chart divides bars into parts to show a cumulative effect
A pie diagram is a circular chart that is divided into segments that show the proportion of the whole each part takes up
A ternary graph shows the ratio of three variable that sum to a constant by a point in an equilateral triangle
Data concepts
A line of best fit is the line that most closely follows a sample of data
An anomaly is a data point that does not follow the pattern established by the rest of the data set
Thematic maps
A thematic map is one designed to show a particular theme connected with a specific geographical area
A choropleth map compares areas using colour: typically, differences in hue denote qualitative differences and differences in saturation or lightness denote quantitative differences
An isoline map shows the variation of a continuous quantity over an area using contour lines
A dot map plots occurrences of a phenomenon to show the variation in frequency over an area
A proportional symbol map compares areas using symbols of proportional sizes
A desire line map shows the movement of a population between points in an area using lines whose thickness is proportional to the frequency of movement
A flow line map shows the route of movement of a population in an area using lines whose thickness is proportional to the frequency of movement
A topological diagram preserves the connections between points on a map but not the shape, like the London Underground map