Movie companies need to predict the gross receipts of individual movies once the movie has debuted. The following results, stored in PotterMovies , are the first weekend gross, the U.S. gross, and the worldwide gross (in $millions) of the Harry Potter movies.

a. Perform a multidimensional scaling analysis on the Harry Potter movies based on the first weekend gross, the U.S. gross, and the worldwide gross (in $millions).

b. What conclusions can you reach about which Harry Potter movies are most similar?