NAME:  Body Fat Content
TYPE:  Sample
SIZE:  20 observations, 4 variables

DESCRIPTIVE ABSTRACT:
The dataset contains a portion of the data for a study of the relation
of the amount of body fat to several possible predictor variables, based
on a sample of 20 healthy females 25-35 years old.  The amount of body
fat for each of the 20 subjects was obtained by a cumbersome and
expensive procedure requiring the immersion of the person in water.  It
would therefore be very helpful if a regression model with some or all
of the predictor variables could provide reliable estimates of the
amount of body fat since the measurements need for the predictor
variables are easy to obtain.

SOURCES:
 Neter, Kutner, Nachtsheim, & Wasserman.  Applied Linear Statistical
    Models, 4th edition.  Table 7.1 page 261.

VARIABLE DESCRIPTIONS:

 1. Tricep Skinfold Thickness (in cm)
 2. Thigh Circumference (in cm)
 3. Midarm Circumference (in cm)
 4. Body Fat (as percentage I think)