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2 answers:
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Answer:
Option 3) The expected Exam 3 score for someone that made a 0 on Exam 1 is a 50.57.
Step-by-step explanation:
We are given the following in the question:
The above equation is a linear regression equation to predict the Exam 3 score of students in STA 2023 based on their Exam 1 score.
: The dependent variable, Exam 3 score
x: The independent variable, Exam 1 score
Comparing to general linear equation,
We get,
m = 0.4845, c = 50.57
where
c is the y - intercept and the score in exam 3 when exam score is 0.
m is the slope and tells us about the rate of change.
When exam 1 grade is increased by 1, we can write,
Thus, the y-intercept for the given equation can be interpreted as
Option 3) The expected Exam 3 score for someone that made a 0 on Exam 1 is a 50.57.