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Question

For the adjacency matrix of a directed graph the row sum is the _________ degree and the column sum is the ________ degree.

a.

in, out

b.

out, in

c.

in, total

d.

total, out

Answer: (b).out, in

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Q. For the adjacency matrix of a directed graph the row sum is the _________ degree and the column sum is the ________ degree.

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