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| rev | Admin | (Created page with "'''Key: D''' <math display = "block"> \overline{x} = 6/6 = 1, \, \overline{y} = 8.5/6 = 1.41667, \, \hat{\beta}_1 = \frac{\sum x_iy_i - n \overline{x}\overline{y}}{\sum{x_i^...") | May 26'23 at 17:01 | +236 |