Suzi’s company: frequency tables

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This task is designed to assess how well students understand:

  • Calculating the mean from a frequency table
  • Working out the mode from a frequency table
  • Using statistical measures to justify a statement

The task looks at salaries in a small company. Information on salaries is presented in the form of a frequency table. Students must calculate the mean, mode and median from the table. They then use their answers to justify different statements. The final task is to look at the effect of removing one of the pieces of data.

This task is from the Mathematics Assessment Resource Service, a collaboration between UC Berkeley and the Shell Centre team at the University of Nottingham. A full rubric is given for the task, together with examples of student work and suggestions for helping students overcome misconceptions. Further information on the collection is given here.

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