The following table shows the mean and variance of population densities of species A, B and C.
| Statistic | Species A | Species B | Species C |
| Mean x̅ | 5.30 | 7.05 | 5.30 |
| Variance s2 | 5.05 | 0.35 | 50.5 |
Based on the above, which of the following statements is correct?
1
Species A and B show uniform distribution, whereas species C shows clumped distribution.
2
Species A shows random distribution, species B shows uniform distribution, and species C shows clumped distribution.
3
Species A and B show clumped distri- bution, whereas species C shows uniform distribution.
4
Species A shows clumped distribution, species B shows random distribution, and species C shows uniform distribution.