Answer: c. 91
Step-by-step explanation:
Given : A linear regression equation was computed to predict the final exam score from score on the midterm exam.
The equation of the least squares regression line was
[tex]Y = 10 + 0.9x[/tex]
, where y= the final exam score
x= the midterm exam score.
if Joe score a 90 on the midterm exam, the put x= 90 in the above eqaution , we get
[tex]Y = 10 + 0.9(90)[/tex]
[tex]\Rightarrow\ Y = 10 + 81=91[/tex]
Hence, the predicted value of his score on the final exam would be 91.
Therefore , the correct answer is c. 91 .
Answer:
The correct option would be 'c. 91'
Step-by-step explanation:
Given equation that shows the predicted final exam score,
[tex]y = 10 + 0.9x[/tex]
Where,
x = midterm exam score,
If midterm exam score is 90,
i.e. x = 90,
Then the predicted value of his score on the final exam is,
[tex]y = 10 + 0.9(90) = 10 + 81 = 91[/tex]
Hence, OPTION C is correct.
