8.1.1 Representing Data

We talked about different kinds of graphs and answered questions about different examples of graphs.  Line graphs are great for showing trends, in fact, by looking at a graph that compares # of views over time, Youtube can figure out what kinds of videos are "trending" or becoming very popular.

After today, you should be able to

  • read information from a graph
  • compare information within a graph
  • create a graph
    • label each axis
    • give the graph a title
    • use consistent measurements on the intervals
  • create a circle graph from data using a circle graph template

Some important vocabulary:

  • axis
  • interval
  • trend


  • 8.1.1 Notes: Completed Notes


FileDescriptionFile size
Download this file (8.1.1.notes.pdf)8.1.1.notes.pdfNotes for advantages of different kinds of graphs1472 kB

8.1.2 Misrepresenting Data

 A shoe salesman wants to convince you that velcro shoes are coming back into fashion, and he has some pictographs that show velcro shoes look way more popular than all other shoes combined!  Is his graph accurate, or is he trying to mislead you into believing something that is not true?  Find out how graphs can be used to show correct data, but can misrepresent what the numbers actually say!


  • Warmup 1.2
  • Notes: Misrepresenting Data


FileDescriptionFile size
Download this file (8.1.2.notes.pdf)8.1.2.notes.pdfNotes: Misrepresenting Data1706 kB

8.1.3 Critiquing Data

A graph is really just a tool for helping us make a conclusion, but they should still be meaningful graphs.  This means we should make sure that:

  • we have the right graph to show the data
  • we avoid misleading features
  • the conclusion we wish to make is supported by the graph


  • Notes: 8.1.3 Critiquing Data


  • p32 4 5 8 10
FileDescriptionFile size
Download this file (8.1.3.notes.pdf)8.1.3.notes.pdf8.1.3 Critiquing Data1389 kB

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