Degree distribution is a concept in network theory that refers to the distribution of the number of connections or links each node in a network has. It is a key aspect of network structure and can provide valuable insights into the organization and behavior of complex systems. Degree distribution analysis is often used to study the connectivity patterns of networks, such as social networks, biological networks, and information networks. Researchers use various statistical measures to characterize degree distributions, such as the average degree, degree variance, and degree distribution function. These measures can help researchers understand the robustness, resilience, and efficiency of networks, as well as predict how information or diseases may spread through a network.