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9
Key features of different graph types
Histograms:
No gaps between bars.
Frequency Histograms:
Equal bar widths.
Frequency as y-axis
Frequency Density Histograms:
Different bar widths.
Frequency Density as y-axis
Cumulative Frequency graphs:
Points plotted at top of class-boundaries.
Smooth curve through points.
Frequency Polygons:
Frequencies plotted at class mid-points.
Points joined with straight-lines.
No gaps between bars.
Frequency Histograms:
Equal bar widths.
Frequency as y-axis
Frequency Density Histograms:
Different bar widths.
Frequency Density as y-axis
Cumulative Frequency graphs:
Points plotted at top of class-boundaries.
Smooth curve through points.
Frequency Polygons:
Frequencies plotted at class mid-points.
Points joined with straight-lines.
