[ClearCase_guy]

People who listen to Jazz are dumber than people who listen to Jay-Z. Apparently.

[mnehring]

That may be a case of those who answered with the phrase “Jazz” versus a specific artist. IE, dumb people who wanted to appear smart and sophisticated so they answered jazz.

[colinhester]

People who listen to Jazz are dumber than people who listen to Jay-Z. Apparently.

I thought that was kind of odd as well.

[dfwgator]

People who listen to Jazz are dumber than people who listen to Jay-Z. Apparently.

It's true if they listen to Kenny G.

[r9etb]

People who listen to Jazz are dumber than people who listen to Jay-Z. Apparently.

Correlation vs. causation.

There's a fairly strong correlation between SAT scores and ethnic identity. If a certain ethnic group is more closely identified with a particular kind of music (i.e., jazz or Beethoven), you would expect to see that reflected in the chart above.