In the least squares equation, Y' = 10 + 20X the value of 20 indicates
A) the Y intercept.
B) for each unit increased in X, Y increases by 20.
C) for each unit increased in Y, X increases by 20.

Question

Quizplus · Accepted Answer

The value of 20 in the least squares equation indicates that for each unit increased in X, Y increases by 20. This is the slope of the line in the equation, which measures the rate of change in Y for each unit increase in X. The Y intercept, which is the value of Y when X is 0, is 10 in this equation. Option C is incorrect as it describes a situation where Y increases as X increases.

In the Least Squares Equation, Y' = 10 + 20X