Question

If the LSRL relating the independent variable x and the dependent variable y for a given problem is ŷ = 3x + 5, then an increase of 1 unit in x is associated with an increase of how many units in y?

Answer 1

3

Explanation:

The slope in the linear regression line shows the increase in dependent variable y due to unit change in independent variable x.

The given LSRL( least square regression line) is

y^=3x+5

Here, 3 represents the slope of line and 5 represents intercept of the line.

So, the increase of 1 unit in x is associated with an increase of 3 units in y.