Explain the moaning of the entries of the matrix

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Reference no: EM131003810

Suppose, in a housing project, a sociologist passes out a questionnaire to the residents in which she asks each resident to list the other residents that they consider their best friends. For simplicity, we say that there are only 5 residents and their choices are summarized by the matrix:

The ones in each row indicate the choices of the person to the left of the row. For example, x chooses y and w as her best friends while y chooses x and z. Explain the moaning of the entries of the matrix AA^t.

Reference no: EM131003810

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