Question

A student believes there is a correlation between the number of texts sent during class and GPA. The student collected data and found that the line of fit can be

modeled by the equation y = 3.9 - 0.1x.
Identify and interpret the slope in this scenario.
A) The slope is 3.9. Starting at 0.1, the GPA will increase by 3.9 for every text sent in class
B) The slope is 3.9. Starting at 0.1, the GP will decrease by 3.9 for every text sent in dash
C) The slope is -0.1. Starting at 3.9, the GPA will increase by 0.1 for every text sent in class.
D) The slope is -0.1. Starting at 3.9, the GPA will decrease by 0.1 for every text sent in class.

Answer 1

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D) The slope is -0.1. Starting at 3.9, the GPA will decrease by 0.1 for every text sent in class. This means that for every additional text sent during class, the student's GPA is expected to decrease by 0.1 points.