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A regression line uuin 25 otservation as sum of scared residuare the mession line 1-5632. The standard error of WM O24 3.7 1.56 0211 Question 8 (1 point) Suppose we have a 9-bit computer that uses IEEE floating-point anthmetic where a floating point number has 1 sign bit, 3 exponent bits, and 3 fraction bits. The number 3.875 in the 9-bit format is 110011101 00 1001111 O 0 10011110 1 10011000 Question 9 (1 point) In a multiple regression problem involving two independent variables, if the regression equation is = 3 +0.345x1 + 2x2 the value 0.345 in the previous equation can be interpreted as: The estimated value of Yincreases by an average of 0.345 units for each increase of 1 unit of X, when the 21 is held constant True False