Lesson Plan: Cumulative Frequency | Nagwa Lesson Plan: Cumulative Frequency | Nagwa

# Lesson Plan: Cumulative Frequency

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to draw a cumulative frequency diagram and how to use it to make estimations about the data.

#### Objectives

Students will be able to

• construct a cumulative frequency table from a grouped frequency table,
• draw a cumulative frequency diagram as a smooth curve,
• interpret a cumulative frequency diagram to estimate the frequency of occurrence of a given event,
• approximate the median, upper and lower quartiles, and the percentile of a data set using a given cumulative frequency diagram,
• construct a box-and-whiskers plot from a given cumulative frequency diagram,
• compare two different data sets using their cumulative frequency diagrams.

#### Prerequisites

Students should already be familiar with

• grouped frequency tables,
• the mean, median, and quartiles,
• percentiles,
• constructing box-and-whisker plots.

#### Exclusions

Students will not cover

• histograms,
• the frequency polygon or ogive,
• relative frequency,
• descending cumulative frequency graphs,
• using linear interpolation to estimate the median and quartiles.