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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Biometrics. 2010 Oct 29;67(3):876–885. doi: 10.1111/j.1541-0420.2010.01500.x

Table 3.

Description of the sample of the variables in CPP data

MEAN STD 25% percentile 75% percentile MIN MAX
IQ 96.23 16.09 84.00 108.00 56.00 145.00
PCB 3.16 1.93 1.88 3.86 0.25 17.61
EDU 10.86 2.44 9.00 12.00 1.00 18.00
SES 4.84 2.20 3.30 6.30 0.30 9.30
RACE 0.49 0.50 0.00 1.00 0.00 1.00
SEX 0.50 0.50 0.00 1.00 0.00 1.00

Note 3: MEAN = sample mean of the variable; STD= sample standard deviation of the variable; MIN = minimum value of the sample of the variable; MAX = maximum value of the sample of the variable.