A colleague went to the lego.com website in February 2014 and recorded the number of pieces and the sales price for 157 Lego products listed there. The data appear in the Legos data file.
a. Which variable do you think makes more sense to use as the explanatory variable and which as the response variable?
b. Enter the data into the Corr/Regression applet. Produce a scatterplot and comment on the association between the variables as revealed in the scatterplot. (Remember to comment on form, direction, strength, and unusual observations.)
c. Report the value of the correlation coeffi cient.

d. Calculate the value of r² and interpret what the value means in this context.