femsmoke {faraway} | R Documentation |
In 1972-74, a survey of one in six residents of Whickham, near Newcastle, England was made. Twenty years later, this data recorded in a follow-up study. Only women who are current smokers or who have never smoked are included.
data(femsmoke)
A data frame with 28 observations on the following 4 variables.
yes
no
yes
no
18-24
25-34
35-44
45-54
55-64
65-74
75+
D. Appleton, J. French, M. Vanderpump (1996) "Ignoring a Covariate: An Example of Simpson's Paradox" American Statistician, 50, 340-341