Question

The grades of a class of 9 students on a midterm report (x) and on the final examination (y) are shown below. Use the data to complete parts (a) and (b). x | 76 | 50 | 71 | 73 | 81 | 91 | 96 | 99 | 67 y | 80 | 67 | 78 | 37 | 47 | 82 | 99 | 99 | 69 (a) Estimate the linear regression line. y? = ? + (?)x (Round the constant to one decimal place as needed. Round the coefficient to three decimal places as needed.) (b) Estimate the final examination grade of a student who received a grade of 85 on the midterm report. y? = ? (Round to one decimal place as needed.)

          The grades of a class of 9 students on a midterm report (x) and on the final examination (y) are shown below. Use the data to complete parts (a) and (b).

x | 76 | 50 | 71 | 73 | 81 | 91 | 96 | 99 | 67
y | 80 | 67 | 78 | 37 | 47 | 82 | 99 | 99 | 69

(a) Estimate the linear regression line.

y? = ? + (?)x
(Round the constant to one decimal place as needed. Round the coefficient to three decimal places as needed.)

(b) Estimate the final examination grade of a student who received a grade of 85 on the midterm report.

y? = ? (Round to one decimal place as needed.)

The grades of a class of 9 students on a midterm report (x) and on the final examination (y) are shown below. Use the data to complete parts (a) and (b).

x | 76 | 50 | 71 | 73 | 81 | 91 | 96 | 99 | 67
y | 80 | 67 | 78 | 37 | 47 | 82 | 99 | 99 | 69

(a) Estimate the linear regression line.

y? = ? + (?)x
(Round the constant to one decimal place as needed. Round the coefficient to three decimal places as needed.)

(b) Estimate the final examination grade of a student who received a grade of 85 on the midterm report.

y? = ? (Round to one decimal place as needed.)

Added by Rachel M.

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