GCSE Statistics Specification for first teaching in 2017
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Use visualisation and calculation to interpret results with reference to the context of the problem, and to evaluate the validity and reliability of statistical findings.
Notes: using fractions, decimal and percentages.
Notes: includes making estimates of theoretical probability from a relative frequency table or diagram.
Notes: includes the calculation and use of appropriate probabilities from the use of these diagrams.
Notes: comparisons should be context based interpretations, not just observations of difference. Use of calculator functions is encouraged.
Notes: comparisons should be context-based interpretations, not just observations of difference. Use of calculator functions is encouraged.
Notes: including published secondary data.
Notes: includes the use of Venn, sample space, tree diagrams and two-way tables.
Notes: the formula will be given in the question. Students should be able to identify positive and negative skew. Decisions on the strength of the skew are not expected.
Notes: rates of change formulae will be given in the question. This includes birth and death rates.
Notes: rates of change formulae will be given in the question. This includes birth and death rates.
Notes: use of the word ‘moderate’ for correlation will not be required.
Values of 0.6 or above or −0.6 or below will be considered strong. 0.2 up to but not including 0.6 or −0.2 down to but not including −0.6 will be considered weak.
Values between, but not including −0.2 and 0.2 will be considered as ‘no correlation’.
Notes: formula will be given in the question.
Notes: students should know that Spearman's measures the correlation of the rank orders whereas Pearson’s measures the linear relationship.
Notes: formal tests of significance will not be required.
Notes: Including the notion of a fixed number of trials and a constant probability of ‘success’. Students should know and use the characteristic of symmetry of probabilities where appropriate. The word ‘binomial’ will be used in assessments. Notation X ~ B ( , ) will not be used. The value of will be no greater than 5.
Notes: including the symmetric bell-shape nature of the distribution.
Notes: other than the results in E11b, no calculations for values or normal probabilities are expected.
Notes: formulae will be given in the question.
Notes: includes understanding possible assumptions that may affect the validity or reliability of the process.
Notes : no formal use of the distribution of is expected.