C.1.2—Arithmetic means

Calculate arithmetic means, including a mean value from repeated experimental readings.

Use c.1.2—arithmetic means to connect the rule to the data and decision in the question.

This matters because c.1.2—arithmetic means determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply c.1.2—arithmetic means to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: C.1.2—Arithmetic means is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.