Ten different types of brownies are sold. You are thinking of developing a new brownie for sale. Brownies are rated on the basis of 5 qualities: price, chocolate flavor, chewiness, sweetness, and ease...

Ten different types of brownies are sold. You are thinking of developing a new brownie for sale. Brownies are rated on the basis of 5 qualities: price, chocolate flavor, chewiness, sweetness, and ease of preparation. You want to group the 10 brownies on the market into 3 clusters. Each cluster should contain brownies that are relatively similar.

a. Why would this be useful to you?

b. How would you do it?