The data in the table is the number of absences for 7 students and their corresponding grade.
Number of Absences | 1 | 2 | 3 | 3 | 6 | 7 | 7 |
---|---|---|---|---|---|---|---|
Grade | 3.7 | 3.7 | 3.5 | 3.1 | 2.8 | 2.5 |
1.7 |
Calculate the estimated variance of slope, s2b1. Round your answer to three decimal places.
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