Mathematics, 30.10.2021 18:20, katiepotter
A guidance counselor wants to determine if there is a relationship between a student’s number of absences, x, and their grade point average (GPA), y. The data that were collected are displayed in the scatterplot and the least-squares regression line was calculated. One student with 2 absences has a GPA of 1.8. This point is circled on the graph.
What effect will this point have on the value of r2 if it is not included in the data?
The value of r2 would not be affected because the residual is negative.
The value of r2 would not be affected because this point follows the pattern of the data.
The value of r2 would increase substantially because this point does not follow the pattern of the data.
The value of r2 would decrease substantially because this point does not follow the pattern of the data.
Answers: 1
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