Question: Given a directed graph on n nodes, let ?i denote the out-degree of a node ui in the graph. Further, m denote the total number

Given a directed graph on n nodes, let ?i denote the out-degree of a node ui in the graph. Further, m denote the total number of edges in the graph. Write the correct relational operator in the expression below: Xn i=1 ?i {=, >, <} m

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