Consider the following statements about the Beta Index:
1. The Beta Index measures the connectivity of a network using the ratio of edges to vertices.
2. A Beta Index value of 1 indicates a fully connected network.
3. It is particularly useful in comparing the complexity of transportation networks.
4. The value of the Beta Index is always greater than or equal to 0.
1
1, 2, and 3
2
2 and 3
3
1, 3, and 4
4
2 only