We hypothesize that "percentage of residents supporting for a law to register handguns" (Y) depends on "size of community of residence" (X₁), measured as the number of residents, and "percentage of residents own guns" (X₂).According to a sample of 400 neighborhoods, the following statistics are found: b₁ = .05, b₂ = -.33, a = 15.50.

c) Write the prediction equation.

d)What is the expected percentage of resident who support for a law to register handguns for a neighborhood of 1,000 residents and 20 percent of its residents own guns.

e) Show that the relationship between Y and X₂ for neighborhoods of 500 residents is E(Y) = 40.50-.33X₂.