Birth weights in Philadelphia
Data based on a 5
data(phbirths)
A data frame with 1115 observations on the following 5 variables.
blackis the mother Black?
educmother's years of education
smokedoes the mother smoke during pregnancy?
gestategestational age in weeks
gramsbirth weight in grams
I. T. Elo, G. Rodriguez and H. Lee (2001). Racial and Neighborhood Disparities in Birthweight in Philadelphia. Paper presented at the Annual Meeting of the Population Association of America, Washington, DC 2001.
data(phbirths) ## maybe str(phbirths) ; plot(phbirths) ...
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