In the least squares equation, Ŷ = 10 + 20X the value of 20 indicates ____________.

Question

The Y-intercept increases by 20 units for each unit increase in X

That Y increases by 20 units for each unit increase in X

That X increases by 20 units for each unit increase in Y

The error in prediction

Answer 1

20 represents the slope.

Slope is defined as the increase in y-value divided by the increase in x-value, that is:
slope = Δy / Δx