Chronic Bronchial Reaction to Dust
dust data was surveyed among the employees of a Munich factory.
A data frame with 1246 observations on the following 4 variables.
chronical bronchial reaction, no = 0, yes = 1
dust concentration (mg/cm^3) at working place
employee smoker?, no = 1, yes = 2
years of dust exposition
1 2 3 4 5 6 7
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