Year 7 |
Year 8 |
Year 9 |
Year 10 |
Year 11 |
Extension |
| Suggest possible answers, given a question that can be addressed by statistical methods. |
Discuss a problem that can be addressed by statistical methods and identify related questions to explore. |
Suggest a problem to explore using statistical methods, frame questions and raise conjectures. |
Independently devise a suitable plan for a substantial statistical project and justify the decisions made. |
Consider possible difficulties with planned approaches, including practical problems; adjust the project plan accordingly. |
Select and justify a sampling scheme and a method to investigate a population, including random and stratified sampling. |
| Decide which data would be relevant to an enquiry and possible sources . |
Decide which data to collect to answer a question, and the degree of accuracy needed; identify possible sources; consider appropriate sample size. |
Discuss how different sets of data relate to the problem; identify possible primary or secondary sources; determine the sample size and most appropriate degree of accuracy. |
Identify possible sources of bias and plan how to minimise it. |
Deal with practical problems such as non-response or missing data. |
Understand how different methods of sampling and different sample sizes may affect the reliability of conclusions drawn. |
| Plan how to collect and organise small sets of data from surveys and experiments:
• design data collection sheets or questionnaires to use in a simple survey • construct frequency tables for gathering discrete data, grouped where appropriate in equal class intervals. |
Plan how to collect the data; construct frequency tables with equal class intervals for gathering continuous data and two-way tables for recording discrete data. |
Design a survey or experiment to capture the necessary data from one or more sources; design, trial and if necessary refine data collection sheets; construct tables for gathering large discrete and continuous sets of raw data, choosing suitable class intervals; design and use two-way tables. |
Break a task down into an appropriate series of key statements (hypotheses), and decide upon the best methods for testing these. |
Identify what extra information may be required to pursue a further line of enquiry. |
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| Collect small sets of data from surveys and experiments, as planned. |
Collect data using a suitable method (e.g. observation, controlled experiment, data logging using ICT). |
Gather data from specified secondary sources, including printed tables and lists, and ICT-based sources, including the internet.
Lottery Data Excel |
Gather data from primary and secondary sources, using ICT and other methods, including data from observation, controlled experiment, data logging, printed tables and lists. |
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