In a study of environmental physics, the maximum telemetry transmission range (in km) of high-altitude weather balloons launched from two different zones in the stratosphere—the Polar Zone and the Tropical Zone—was compared. In each zone, 25 balloons were monitored, yielding the following raw data:
| Stratosphere Zone | Telemetry Transmission Range (km) |
|---|---|
| Polar Zone | 32, 45, 38, 51, 34, 47, 40, 53, 36, 49, 42, 55, 31, 44, 37, 50, 33, 46, 39, 52, 35, 48, 41, 54, 43 |
| Tropical Zone | 41, 30, 52, 35, 46, 32, 55, 38, 43, 34, 50, 37, 48, 33, 54, 40, 31, 56, 36, 45, 42, 53, 39, 51, 44 |
The mean telemetry transmission range for all 50 balloons combined was 42.4 km.
What percentage of the Polar Zone balloons transmitted above the combined mean range and what percentage of the Tropical Zone balloons transmitted above the combined mean range? Show your calculations.
Practise AQA A Level Psychology Data handling and analysis with exam-style questions for A Level Psychology. 263 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
