Question: Exercise 2 (2 pts) A directed graph is strongly connected if for each pair of vertices u and y, there is a path from u

Exercise 2 (2 pts) A directed graph is strongly connected if

Exercise 2 (2 pts) A directed graph is strongly connected if for each pair of vertices u and y, there is a path from u to v and there is a path from v to u. Consider the directed graph below. Is it strongly connected or not? Why or why not? Exercise 3 (2 pts) The graph is bipartite if the set of its vertices can be divided into two disjoint subsets such that every edge connects a vertex from one subset with a vertex from the other subset. Is the graph below bipartite or not? Why or why not? Exercise 4 (2 pts) Calculate the closeness centrality of each vertex in the graph below. Exercise 5 (2 pts) Calculate the betweenness centrality of each vertex in the graph below

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