Handling Data – Handling Data

  1. Step 6
    Compare two simple distributions using the range and one of the mode, median or mean.
  2. View step.

  3. Step 7
    Construct, on paper and using ICT:
    • pie charts for categorical data;
    • bar charts and frequency diagrams for discrete and continuous data;
    • simple line graphs for time series;
    • simple scatter graphs.
    Identify which are most useful in the context of the problem.
  4. View step.

  5. Step 8
    Design a survey or experiment to capture the necessary data from one or more sources; determine the sample size and degree of accuracy needed; design, trial and, if necessary, refine data collection sheets;design and use two-way tables.
    Communicate interpretations and results of a statistical enquiry using selected tables, graphs and diagrams in support, using ICT as appropriate; construct tables for large, discrete and continuous sets of raw data, choosing suitable class intervals.
  6. View step.

  7. Step 9
    Select, construct and modify, on paper and using ICT, suitable graphical representations to progress an enquiry, including scatter graphs to develop further understanding of correlation.
    Examine critically the results of a statistical enquiry, and justify the choice of statistical representation in written presentations.
  8. View step.

  9. Step 10
    Identify possible sources of bias and plan how to minimise it.
  10. View step.

Steps 1 to 5