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Q.22 Consider the following regression equation: y = 2.5x - 0.85. What is the Y-intercept? a....

Q.22

Consider the following regression equation: y = 2.5x - 0.85. What is the Y-intercept?

a. 24.15

b. -0.85

c. 25.85

d. 2.5

e. None of the above

math   Statistics-And-Probability   
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Answer #1

Solution:

Given: y=2.5x -0.85 ..................(1)

As we know that the regessiore equation is given as

Y=b0 +b1*X ...........(2)

Where b0 is the y-intercept of the eqution and

b*X is the slope

Rearranging the equation (1) and Comparing with the equation (2) we can get the y - intercept.

Therefore the , y-intercept is -0.85

Answee : b) -0.85

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