Question

Possums:

Head-Length (mm)	Body-Length (cm)	Y-hat	Residuals
94.1	89
92.5	91.5
94	95.5
93.2	92
91.5	85.5
93.1	90.5
95.3	89.5
94.8	91
93.4	91.5
91.8	89.5
93.3	89.5
94.9	92
95.1	89.5
95.4	91.5
92.9	85.5
91.6	86
94.7	89.5
93.5	90
94.4	90.5
94.8	89
95.9	96.5
96.3	91
92.5	89
94.4	84
95.8	91.5
96	90
90.5	85
93.8	87
92.8	88
92.1	84
92.8	93
94.3	94
91.4	89
90.6	85.5
94.4	85
93.3	88
89.3	82.5
92.4	80.5
84.7	75
91	84.5
88.4	83
85.3	77
90	81
85.1	76
90.7	81
91.4	84
90.1	89
98.6	85
95.4	85
91.6	88
95.6	85
97.6	93.5
93.1	91
96.9	91.5
103.1	92.5
99.9	93.7
95.1	93
94.5	91
102.5	96
91.3	88
95.7	86
91.3	90.5
92	88.5
96.9	89.5
93.5	88.5
90.4	86
93.3	85
94.1	88.5
98	88
91.9	87
92.8	90
85.9	80.5
82.5	82
88.7	83
93.8	89
92.4	89
93.6	84
86.5	81
85.8	81
86.7	84
90.6	85.5
86	82
90	81.5
88.4	80.5
89.5	92
88.2	86.5
98.5	93
89.6	87.5
97.7	84.5
92.6	85
97.8	89
90.7	85
89.2	82
91.8	84
91.6	88.5
94.8	83
91	86
93.2	84
93.3	86.5
89.5	81.5
88.6	82.5
92.4	89
91.5	82.5
93.6	89

Answer 1