Duncan data frame has 45 rows and 4 columns.
Data on the prestige and other characteristics of 45 U. S. occupations in 1950.
This data frame contains the following columns:
Type of occupation.
A factor with the following levels:
prof, professional and managerial;
Percentage of occupational incumbents in the 1950 US Census who earned $3,500 or more per year (about $36,000 in 2017 US dollars).
Percentage of occupational incumbents in 1950 who were high school graduates (which, were we cynical, we would say is roughly equivalent to a PhD in 2017)
Percentage of respondents in a social survey who rated the occupation as “good” or better in prestige
Duncan, O. D. (1961) A socioeconomic index for all occupations. In Reiss, A. J., Jr. (Ed.) Occupations and Social Status. Free Press [Table VI-1].
Fox, J. (2008) Applied Regression Analysis and Generalized Linear Models, Second Edition. Sage.
Fox, J. and Weisberg, S. (2011) An R Companion to Applied Regression, Second Edition, Sage.
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