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Line is Passing through the Points (-3 , -1) and (-5 , 4)
Slope of a Line Passing through two points (x₁ , y₁) and (x₂ , y₂) is given by :
here x₁ = -3 and x₂ = -5 and y₁ = -1 and y₂ = 4
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
, 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
Hence, the predicted value of his score on the final exam would be 91.
Therefore , the correct answer is c. 91 .