Exam 4: Graphical Descriptive Techniques Numerical Data

For a bar chart to show graphical excellence, the bars must be the same width irrespective of each bar's height.

The strength of a linear relationship between two numerical variables may be illustrated by a line graph, where the closer the points form a line, the stronger the linear relationship between the two variables.

A cumulative frequency distribution presented in graphical form is called an ogive.

Graphical excellence is displayed when a graph has a proper scale, the axis are marked correctly are the graph chosen appropriately tells the truth about the data.