True -- though I don't think the problem is with response rate -- The data come from the National NAEP exam, the data points represent the average state math score and the replies to a survey that I presume was administered to all students taking the test -- since it is a part of the same database.
A more interesting vorrelation here is the negative correlation between the % of students with a positive attitude toward mathmatics and the math scores -- it's strongly negative. Perhaps that's that's because students who are not taught difficult math really like. "Carl W." wrote: > "Gary Klass" <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > http://lilt.ilstu.edu/gmklass/COW/ > > Does this prove that TV makes you bad at math or that if you're bad at math > you tend to watch more TV? > > This is a bit like the fact that market researchers only glean information > from people who are willing to take part in market research... Consider: > > What if a propensity to say 'Yes' to 'Do you want to take part in a survey?' > would also make you like (say) Chocoloate Peanut Butter more? > > Given that a small number of people actually take part in market research, > The Fictional Peanut Butter Corporation is going to start manufacturing > Chocolate Peanut Butter based on their survey, and then find no (or not > many) takers in the 'real world'. > > Beware statistics, and more importantly, anything based on market research > or a survey. > > Okay, rant over, > Carl ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at http://jse.stat.ncsu.edu/ =================================================================
