09 December 2013

9 December, S1 - Year 9B (cover)*

Title: Frequency Polygon
Challenge Question
When is it appropriate to use a frequency polygon as apposed to a bar chart?Learning Targets

Developing
To be able to demonstrate how to draw a frequency polygon for continuous data.
Mastering
To be able to use frequency polygons to answer a question.


Resources
Starter


Look at this frequency polygon and answer the questions below.



































Beginning
Today you are first going to learn / revise how to draw a frequency polygon. The websites and resources below will help.

BBC Bitesize - Frequency Polygon
How to draw a frequency polygon (from MEP)


Copy the following tables into your book and for each table draw a frequency polygon. For each graph explain what the graphs shows (remember to plot the point at the midpoint of each interval).
Mastering
The following examples are designed to ensure you have a full understanding of how to draw frequency polygons but then ask you to use frequency polygons (for example using males and females).
Frequency Polygons (from MEP 8.6)*
Note: the answers can be found on the last page.

If you think you know everything there is to know about Frequency Polygons then have a look at these exam questions.
Homework
Draw a frequency polygon using the table of data below. Explain what it shows.
Upload your answer to Showbie.