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3.4. In fitting a straight line y = xo +xt to the three data points (ti, yi) - (0,0), (1,0), (1,1), is the least squares

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3.4. In fitting a straight line y = xo +xt to the three data points (ti, yi) - (0,0), (1,0), (1,1), is the least squares solution unique? Why

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