The data below represent the number of days absent, x, and the final grade, y, for a sample of college students at a large university. Complete parts (a) through (e) below. No. of absences, x 1 3 4 5 7 8 Final grade, y 88.8 86.0 83.1 80.6 77.8 73.5 64.1 68.6 65.8 62.9 (a) Find the least-squares regression line treating the number of absences, x, as the explanatory variable and the final grade, y, as the response variable. (Round to three decimal places as needed.) (b) Interpret the slope and y-intercept, if appropriate. Interpret the slope. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) days, on average. O A. For every unit change in the final grade, the number of days absent falls by O B. For zero days absent, the final score is predicted to be. O C. For every day absent, the final grade falls by on average. days. O D. For a final score of zero, the number of days absent is predicted to be O E. It is not appropriate to interpret the slope.

The data below represent the number of days absent, x, and the final grade, y, for a sample of college students at a large university. Complete parts (a) through (e) below. No. of absences, x 1 3 4 5 7 8 Final grade, y 88.8 86.0 83.1 80.6 77.8 73.5 64.1 68.6 65.8 62.9 (a) Find the least-squares regression line treating the number of absences, x, as the explanatory variable and the final grade, y, as the response variable. (Round to three decimal places as needed.) (b) Interpret the slope and y-intercept, if appropriate. Interpret the slope. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) days, on average. O A. For every unit change in the final grade, the number of days absent falls by O B. For zero days absent, the final score is predicted to be. O C. For every day absent, the final grade falls by on average. days. O D. For a final score of zero, the number of days absent is predicted to be O E. It is not appropriate to interpret the slope.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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