1. Least-Squares Line

Example 1.

Compare the maximum error, average error, and rms error for the linear approximation y = f(x) = 8.6 - 1.5x to the data points (-1, 10), (0, 9), (1, 7), (2, 5), (3, 4), (4, 3), (5, 0), and (6, -1).

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