9.4. The OECD (Organization for Economic Cooperation and Development) consists of 20 advanced, industrialized countries. For these nations,4 the prediction equation relatingy = child poverty rate in 2000 to x = social expenditure as a percent of gross domestic product is y = 22 — 1.3x. The yvaluesranged from2.8% (Finland) to21.9% (U.S.).

Thex-values ranged from 2% (U.S.) to 16% (Denmark).

(a) Interpret the y-intercept and the slope.

(b) Find the predicted poverty rates for the U.S.

and for Denmark.

(c) The correlation is —0.79. Interpret.