Chart of Tree density and rainfall. X-axis is rainfall in centimeters, and y-axis is tree density in trees per acre. Data is plotted as dots of various sizes. Points are clustered at low density for low rainfall, and high density for high rainfall. Match the graph image with its corresponding type and common use. A histogram showing the frequency of characteristics across groups A line graph showing a trend relative to changes in time A flow diagram showing the direction or sequence of a process A scatterplot showing the relationship between two characteristics