S1.2.2 - Measures of location – mean,

Measures of location – mean, Calculation of mean, mode and median, range and median, mode. interquartile range will not be the direct focus of examination questions.; Students will be expected to draw simple inferences and give interpretations to measures of location and dispersion.; Significance tests will not be expected.; Data may be discrete, continuous, grouped or ungrouped.; Understanding and use of coding.

Use measures of location – mean, to connect the rule to the data and decision in the question.

This matters because measures of location – mean, determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply measures of location – mean, to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: Measures of location – mean, is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.