Midterm and ?nal examination test scores

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The following are midterm and ?nal examination test scores for 10 students from a calculus class, wheredenotes the midterm score and denotes the ?nal score for each student.

x

68

87

75

91

82

77

86

82

75

79

y

74

79

80

93

88

79

97

95

89

92

(a) Calculate the least-squares regression line for these data.

(b) Plot the points and the least-squares regression line on the same graph.

Reference no: EM13963892

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