The last diagram we will be looking at to complete our work on statistics is a Carroll diagram. A Carroll diagram sorts information using more than two criteria by using different yes/no questions. The diagram itself looks a bit like a table and rectangles are used to represent groups (unlike circles in a Venn diagram). For example:
Did you know that a Carroll diagram is named after Lewis Carroll (1832-1898), the author of Alice in Wonderland, whose real name was Charles Dodgson? He was also a professor of mathematics at Oxford University!
For this lesson, first work through the PowerPoint which explains Carroll diagrams in a bit more detail. Then, open the Carroll diagram and picture mat. Can you sort the living things into the correct groups? Remember to think very carefully and check your answers! You may print off the documents and cut and stick the pictures or copy and draw them yourself.