A student estimated the percentage cover of clover plants in a field using a quadrat divided into 25 equal squares. If a square contains any part of a clover plant, it is counted. Table 1 shows some of the student's results:
| Quadrat number | Number of squares containing clover plants | Percentage cover of clover plants (%) |
|---|---|---|
| 1 | 8 | 32 |
| 2 | 12 | 48 |
| 3 | 15 | 60 |
| 4 | 18 | 72 |
| 5 | 7 | PPP |
Calculate the percentage cover PPP for Quadrat 5 and the mean percentage cover MMM for all five quadrats.
63 exam-style questions on AQA GCSE Biology 7.1 Adaptations, interdependence and competition, covering 7.1.1 Communities, 7.1.2 Abiotic factors, 7.1.3 Biotic factors, and 7.1.4 Adaptations. Each one has a worked solution and a mark scheme showing where the marks go.