Question: a) Suppose we use a triangular matrix to count pairs and the number of items n = 20. If we store this triangular matrix as

a) Suppose we use a triangular matrix to count pairs and

a) Suppose we use a triangular matrix to count pairs and the number of items n = 20. If we store this triangular matrix as a ragged one-dimensional array Count, what is the index where count of pair (7,8) is stored? (3 points) b) Suppose you are provided with the prior knowledge that only ten percent of the total tabular method should be preferred and why? (3 points)

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