An environmental scientist measures the daily afternoon water temperature (in °C) of a freshwater lake at a specific sampling depth over a nine-day period.
Table 1: Daily afternoon water temperatures over a nine-day period
| Day | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | | :--- | :---: | :---: | :---: | :---: | :---: | :---: | :---: | :---: | :---: | :---: | | Water Temperature (°C) | 14.3 | 13.9 | 15.1 | 14.6 | 13.2 | 13.7 | 14.9 | 15.3 | 14.0 |
Explain one reason why the mean is the most appropriate measure of central tendency for this set of data.
235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.