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The lung capacity of children.
data(LungCap)
A data frame with 654 rows (each child) and 5 columns:
The age of the child, in years
The forced expiratory volume, in litres
The height, in inches
The gender of the child; one of F or M
F
M
Whether the child is a smoker; one of 0 (non-smoker) or 1 (smoker)
0
1
Kahn, Michael (2005). An exhalent problem for teaching statistics. The Journal of Statistical Education, 13(2). Available on-line.