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Aug 28,2016
Regression Equation: Y = a + bx
A linear regression line has an equation of the form Y = a + bX, where X is the explanatory variable and Y is the dependent variable. The slope of the line is b, and a is the intercept (the value of y when x = 0)
Where,
,
and
Problem:
Find the Regression Equation and Line from the following data
| X | 1 | 2 | 4 | 5 | 7 | 8 |
| Y | 1 | 3 | 3 | 5 | 3 | 5 |
Solutions:
and
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