They surveyed 202 thousand PC users.
They surveyed 97 thousand Mac users.
Of PC users, 109 thousand had completed a four year degree and 93 thousand had not.
Of Mac users, 65 thousand had completed a four year degree and 32 thousand had not.
Conclusion: PC users have more combined education years than Mac users do. PC use is more egalitarian in that it reaches more deeply into the less educated among us.
And what kind of statement is this?
52 percent of Mac people live in a city, while PC people are 18 percent more likely than Mac people to live in the suburbs and 21 percent live in rural areas
My interpretation: 52% of Mac people live in a city, 48% of Mac people live ex-Urbana. PC people have a 52*1.18 = 61% chance of being suburbanites, with a 21% Rural component, leaving only 18% of all PC people living in a city. Put into sample sizes, there were 36 thousand Urban PC users and 50 thousand Urban Mac users. This versus 166 thousand PC users outside the city and 47 thousand Mac users.
While I think the proportional representation of Mac users is consistent with my expectations, I'm very surprised by the HUGE swing in market share from an urban to ex-urban market...surprise supporting a strong degree of skepticism that they've actually interpreted their own data correctly.