A student investigates the cover of a low-growing plant in a meadow. The student places a 0.25 m2 gridded quadrat at five randomly selected positions. The quadrat is divided into 100 equal squares. The table shows the number of squares occupied by the plant at each position.
| Position | Number of occupied squares |
|---|---|
| 1 | 34 |
| 2 | 41 |
| 3 | 38 |
| 4 | 29 |
| 5 | 43 |
Calculate the mean area of the quadrat covered by the plant.
Give your answer in m2\mathrm{m}^2m2.
82 exam-style questions on Edexcel GCSE Biology 9.1 Ecosystems and interdependence, covering 9.1.1 Levels of organisation in ecosystems, 9.1.2 Abiotic and biotic factors, 9.1.3 Importance of interdependence, 9.1.4 Parasitism and mutualism, and 9.1.5 Determining number of organisms in an area. Each one has a worked solution and a mark scheme showing where the marks go.