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A) y\overline{y} = 60; R = 0 y\overline{y} = 180; R = -0

Question 51

Multiple Choice

xsxysyry^=b0+b1x3.01.2?120?y^=120+60x\begin{array} { c | c | c | c | c | l } \overline { \mathrm { x } } & \mathrm { s } _ { \mathrm { x } } & \overline { \mathrm { y } } & \mathrm { s } _ { \mathrm { y } } & \mathrm { r } & \hat { \mathrm { y } } = \mathrm { b } _ { 0 } + \mathrm { b } _ { 1 \mathrm { x } } \\\hline 3.0 & 1.2 & ? & 120 & ? & \hat { \mathrm { y } } = - 120 + 60 \mathrm { x }\end{array}


A) y\overline{y} = 60; r = 0.60
B) y\overline{y} = 180; r = -0.60
C) y\overline{y} = -117; r = 0.50
D) y\overline{y} = -48; r = 0.03
E) y\overline{y} = -300; r = 0.50

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