沿用上述符号,<math>G(n,p)</math>中的一个图平均有<math>\binom{n}{2}p</math>条连边。任意特定节点的度服从[https://en.wikipedia.org/wiki/Binomial_distribution 二项分布]:<ref>{{cite journal |last= Newman |first= Mark. E. J. |last2=Strogatz |first2=S. H. |last3=Watts |first3=D. J. |year= 2001 |title= Random graphs with arbitrary degree distributions and their applications|journal= Physical Review E|volume=64 |pages=026118| | 沿用上述符号,<math>G(n,p)</math>中的一个图平均有<math>\binom{n}{2}p</math>条连边。任意特定节点的度服从[https://en.wikipedia.org/wiki/Binomial_distribution 二项分布]:<ref>{{cite journal |last= Newman |first= Mark. E. J. |last2=Strogatz |first2=S. H. |last3=Watts |first3=D. J. |year= 2001 |title= Random graphs with arbitrary degree distributions and their applications|journal= Physical Review E|volume=64 |pages=026118| |