A-Level Maths Edexcel (9MA0)

Recognise and interpret possible outliers in data sets and statistical diagrams.

Any rule needed to identify outliers will be specified in the question. For example, use of $Q_1 - 1.5 × IQR$ and $Q_3 + 1.5 × IQR$ or mean $±3 × SD$.

Select or critique data presentation techniques in the context of a statistical problem.

Students will be expected to draw simple inferences and give interpretations to measures of central tendency and variation. Significance tests, other than those mentioned in Section 5, will not be expected.

Be able to clean data, including dealing with missing data, errors and outliers.

For example, students may be asked to identify possible outliers on a box plot or scatter diagram.