Given a collection of pairs (x, y), find both the correlation coefficient, r, and the regression or least squares line y = mx + b. The following represents final exam results for students taking both economics (x), and anthropology (y). X T= y 51 74 70 68 72 97 88 93 You may round the correlation coefficient to three decimals and the regression line to two. 55 73 95 74 45 73 67 73 99 73 68 87 Regression Line:

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Chapter1: Combinatorial Analysis
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Given a collection of pairs (x, y), find both the correlation coefficient, r, and the regression or least
squares line y = mx + b. The following represents final exam results for students taking both economics (x),
and anthropology (y).
X
r =
y
51 68
74 70
Regression Line:
72 97
88
93
Check Answer
56
55 73
66
95
67 73 99
58
You may round the correlation coefficient to three decimals and the regression line to two.
74
73
73 68 87
45
Transcribed Image Text:Given a collection of pairs (x, y), find both the correlation coefficient, r, and the regression or least squares line y = mx + b. The following represents final exam results for students taking both economics (x), and anthropology (y). X r = y 51 68 74 70 Regression Line: 72 97 88 93 Check Answer 56 55 73 66 95 67 73 99 58 You may round the correlation coefficient to three decimals and the regression line to two. 74 73 73 68 87 45
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