Geography A-Level
Standard deviation
What Standard deviation means in Geography A-Level, as defined for AQA.
Definition of Standard deviation
Check what you remember
Read the wording for your board, then hide it and explain Standard deviation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The square root of the mean squared deviation from the mean, using every observation and useful with the mean, though extreme values can influence it.
Topics that use Standard deviation
- Statistical skills (AQA A-Level)
Related terms
- Chi-square test
- Hypothesis testing
- Inter-quartile range
- Median
- Spearman’s rank correlation
- Statistical significance
- Mean
- Measures of central tendency
Using Standard deviation 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 Geography questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Geography A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge