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Scatter Plot for Absences Versus Grades

10. You are given the following data.
Number of Absences Final
0 96
1 91
2 78
2 83
3 75
3 62
4 70
5 68
6 56
a. Make a scatter plot for the data.
b. Find the correlation coefficient for the data.
c. Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.

Solution Summary

Step by step method for regression analysis is discussed here. Regression coefficients, coefficient of determination, scatter diagram and significance of regression model are explained in the solution.