Mathematics A-Level
sampling variation
What sampling variation means in Mathematics A-Level, as defined for WJEC.
Definition of sampling variation
Check what you remember
Read the wording for your board, then hide it and explain sampling variation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: WJEC
Independent random samples drawn from the identical population will naturally yield varying estimates due to sampling variability.
Topics that use sampling variation
- Statistical Sampling (AS Unit 2: Applied Mathematics A) (WJEC A-Level)
Related terms
- informal inference
- methodological evaluation
- Opportunity sampling
- parameter estimation
- Population
- Sample
- sample size impact
- sampling constraints
Using sampling variation in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Mathematics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge