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| rev | Admin | (Created page with "The estimator of <math>\beta_1</math> is <math display = "block"> b_1 = r_1 = \frac{a_1}{a_2} = \frac{117}{262} = 0.4466. </math> where <math>a_1</math> equals (31 − 40)...") | May 26'23 at 19:04 | +1,314 |