M2.2.1 - Centre of mass of discrete distributions

Centre of mass of a discrete mass distribution in one and two dimensions.

Use centre of mass of discrete distributions to connect the rule to the data and decision in the question.

This matters because centre of mass of discrete distributions determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply centre of mass of discrete distributions to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: Centre of mass of discrete distributions is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.