Question

For the variables X and Y, we collect 4 observations with βˆ‘ X = 10,βˆ‘ Y = 14,βˆ‘ X2 = 30,βˆ‘ Y2 = 54,βˆ‘ XY = 31 The regression line y on x is

A y = 0.8x - 5.5 Correct Answer Incorrect Answer
B y = -0.8x - 5.5 Correct Answer Incorrect Answer
C y = -0.8x - 5.5 Correct Answer Incorrect Answer
D y = -0.8x + 5.5 Correct Answer Incorrect Answer

Solution

The correct answer is D

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