3.4.1 - Number of readings

Evaluate the number of readings taken.

Use - number of readings to connect the rule to the data and decision in the question.

This matters because - number of readings determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - number of readings to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Number of readings is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.