The Table below will be used for the next two Questions. It will be shown to you again in the next question.

Bill is buying a computer system for his family. He is considering the following four brands $-$ IBM, Dell, HP$,$ and Sony. He rates the machines on a $10-$point scale on the following four attributes $($Note higher ratings are better, i$.$e$.,$ a rating of $10$ is the best; for rankings, lower numbers are better, i$..,$ an importance ranking of $2$ for an attribute means that attribute is more important than an attribute that had an importance ranking of $3)$: