Step 8 Objective
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.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Examples of what pupils should know and be able to do
If investigating jumping or throwing distances, pupils should check that the data collection sheet is designed to record all factors that may have a bearing on the distance jumped or thrown, such as age or height. They should: decide the degree of accuracy needed for each factor; recognise that collecting too much information will slow down the experiment; recognise that too little may limit its scope.
Pupils should be able to refer to more than one table or graph to answer questions. Based on the charts and diagrams they should be able to devise questions which they may or may not have answers to.