AQA GCSE Combined Science Trilogy · 8464
Specification 5.3.1.4, 6.5.4.3.2 · Paper 2, Paper 3, Paper 6
An average calculated by adding the values and dividing by the number of values included.
Revise: Investigating Reaction Time and Interpreting DataConvert each reading into a reaction time before calculating a mean time. For example, for times of 0.14, 0.16, 0.18, 0.16 and 0.16 s, the total is 0.80 s; dividing by five gives a mean of 0.16 s. A bar chart is suitable for comparing the mean times of separate categories.
- Revise: Chemical Measurements and Uncertainty
- Revise: Reaction Time
The sum of a set of measurements divided by the number of measurements.