Homework Answers
y = -2.03 x + 19.8
A regression line is of the form y = ax + b
Where, a is the slope of the regression line
b is the y intercept.
1)
:. Here, slope of the regression line = -2.03
2)
y - intercept of the regression line = 19.8
3)
Value of y when x = 3
We just have to substitute x = 3 in the regression line equation.
i.e., y = - 2.03 * 3 + 19.8
= -6.09 + 19.8
= 13.71
Answer :
The slope of the regression line is -2.03
The y - intercept of the regression line is 19.8
The value of y when x = 3 is 13.71
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