Question

a set of data has the following linear regression equation y = 1+3x what does the equation predict for a value of x=14?

Answer 1

In this problem, you are simply going to input 14 for x in your equation.

y = 3x + 1
y = 3(14) + 1
y = 42+1
y = 43
This means, when x=14, y=43

Hope this helps!