Regression Analysis Was Applied Between Demand for a Product (Y)and

Multiple Choice

Regression analysis was applied between demand for a product (Y) and the price of the product (X) ,and the following estimated regression equation was obtained.

= 120 - 10 X
Based on the above estimated regression equation,if price is increased by 2 units,then demand is expected to

A) increase by 120 units
B) increase by 100 units
C) increase by 20 units
D) decease by 20 units