what does the typical public school child look like from a demographicand socienomic standpoint can you please give me an answer to this question

Answer 1

One of the things I found in teaching is there is no typical child: all are different, in thousands of ways. You cannot teach them the same way. Demographic and socioeconomic? I have never met a child in public school that chose his parents, his family, his race, his religion, his culture, his family income, and whether or not one parent was missing from the home. So why the worry about all this? It matters not how you teach.
Now the answer you seek: I do not know, I have never noticed.

Answer 2

Is there such a person as a "typical public school child?"

About 80% of Americans are white. The average household income is about $50,000. Using those figures, the average child is a middle-class white child.

http://en.wikipedia.org/wiki/Household_income_in_the_United_States

http://en.wikipedia.org/wiki/Race_and_ethnicity_in_the_United_States