Frequency distributions

Topics

Choose a topic to revise

Sample objectives

What this unit covers

• Frequency distributions: Understand the distinction between ungrouped and grouped frequency distributions, such as those defined by ranges like 30 to under 40, and recognize the pros and cons of consolidating data into a grouped frequency distribution.
• Frequency distributions: Identify the class limits, boundaries, midpoints, and widths for a grouped frequency distribution, noting that these will differ for discrete and continuous data.