Handling Data – Handling Data

  1. Step 1
    Solve a given problem by organising and interpreting numerical data in simple lists, tables and graphs; for example:
    • simple frequency tables;
    • pictograms – symbol representing two units;
    • bar charts – intervals labelled in ones and then twos;
    • Venn and Carroll diagrams (one criterion).
    View step.

  2. Step 2
    Solve a problem by collecting, organising, representing and interpreting data in tables, charts, graphs and diagrams, including those generated by a computer; for example:
    • tally charts and frequency tables;
    • pictograms – symbol representing two, five, ten or twenty units;
    • bar charts – intervals labelled in twos, fives, tens or twenties;
    • Venn and Carroll diagrams (two criteria).
    View step.

  3. Step 3
    Find the mode and range of a set of data.
  4. View step.

  5. Step 4
    Solve a problem by representing, extracting and interpreting data in tables, graphs and charts. Calculate statistics for small sets of discrete data:
    • find the mode, median and range;
    • calculate the mean in simple cases.
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  6. Step 5
    Understand the effect on the mean and median of altering the data. Interpret diagrams and graphs (including pie charts) and draw simple conclusions based on the shape of graphs and simple statistics for a single distribution.
  7. View step.

Steps 6 to 10