The following data represent the chemistry grades for a
Chapter , Problem 7.51(choose chapter or problem)
The following data represent the chemistry grades for a random sample of 12 freshmen at a certain college along with their scores on an intelligence test administered while they were still seniors in high school. The number of class periods missed is also given. Chemistry Test Classes Student Grade, y Score, x1 Missed, x2 1 2 3 4 5 6 7 8 9 10 11 12 85 74 76 90 85 87 94 98 81 91 76 74 65 50 55 65 55 70 65 70 55 70 50 55 1 7 5 2 6 3 2 5 4 3 1 4 (a) Fit a multiple linear regression equation of the form y = b0 + b1x1 + b2x2. (b) Estimate the chemistry grade for a student who has an intelligence test score of 60 and missed 4 classes.
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