# Cumulative Frequency Curves

Taught by MrBurnett
• Currently 4.0/5 Stars.
3579 views | 1 rating
Meets NCTM Standards:
Lesson Summary:

In this intermediate lesson on cumulative frequency curves, the instructor explains how to plot a cumulative frequency curve from a frequency distribution. The lesson covers how to find the cumulative frequencies, write upper glass boundaries, plot the curve, and find the median, upper and lower quartiles, and inter-cortile range. With examples and clear explanations, this lesson is a great resource for those looking to deepen their understanding of frequency distributions and data analysis.

Lesson Description:

Intermediate screencast on plotting a cumulative frequency curve from the frequency distribution.

• What is a cumulative frequency curve?
• How do you calculate the cumulative frequencies of a data set?
• What are the upper class boundaries for each interval of a data set?
• How do you plot the cumulative frequency curve for a data set?
• How do you find the median value for a data set from a cumulative frequency curve?
• How do you find the upper and lower quartiles for a data set and what do quartiles mean?
• How do you find the inner-quartile range for a data set and what does it mean?
• What should a cumulative frequency curve look like?
• What does the inner-quartile range tell you about a data set?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson goes step by step through a cumulative frequency curve for a data set. All parts of this method are explained and shown clearly and slowly. This is a wonderful tutorial to learn the basics of this method of plotting a cumulative frequency curve and finding values from the curve.