A scatterplot of house Price (in dollars) vs house size (in square feet) sold recently in British Columbia, shows a relationship that is linear. The correlation coefficient between house Price and House Size is 0.76. The regression equation was: Price=185,400+71.2 Square feet a) Interpret the slope in the context of the problem.

b) You are looking for 2200 square feet house, what price should you expect?

c) What percentage of the variation in price is explained by the regression on square feet?

d Is the correlation of price and size positive or negative? How do you know?