APPENDIX B Data Sets 753 (Complete data sets available at www.TriolaStats.com) Data Set 10: Family Heights Height data are from 134 families (first five rows shown here). Heights are in inches. Only families with at least one child of each gender are included, and only heights of the first son and first daughter are included. The data are from a journal of Francis Galton (1822–1911), who developed the concepts of standard deviation, regression line, and correlation between two variables. TI-83, 84 list names DAD, MOM, SON1, DGHT1 (FAMHT): FATHER MOTHER FIRST SON FIRST DAUGHTER 70.0 64.0 68.0 65.0 71.0 65.5 72.0 66.0 69.0 63.5 70.5 65.0 69.5 66.0 71.0 66.5 70.0 58.0 72.0 66.0 Data Set 11: IQ and Lead Data are from 121 subjects (first five rows shown here). Data are measured from children in two consecutive years, and the children were living close to a lead smelter. LEAD is blood lead level group [1 = low lead level (blood lead levels 6 40 micrograms>100 mL in both years), 2 = medium lead level (blood lead levels Ú 40 micrograms>100 mL in exactly one of two years), 3 = high lead level (blood lead level Ú 40 micrograms>100 mL in both years)]. AGE is age in years, SEX is sex of subject (1 = male; 2 = female). YEAR1 is blood lead level in first year, and YEAR2 is blood lead level in second year. IQ VERB is measured verbal IQ score. IQ PERF is measured performance IQ score. IQ FULL is measured full IQ score. Data are from “Neuropsychological Dysfunction in Children with Chronic Low-Level Lead Absorption,” by P. J. Landrigan, R. H. Whitworth, R. W. Baloh, N. W. Staehling, W. F Barthel, and B. F. Rosenblum, Lancet, Vol. 1, No. 7909. TI-83, 84 list names LEAD, IQAGE, IQSEX, YEAR1, YEAR2, (IQLEAD): IQV, IQP, IQF LEAD AGE SEX YEAR1 YEAR2 IQ VERB IQ PERF IQ FULL 1 11 1 25 18 61 85 70 1 9 1 31 28 82 90 85 1 11 1 30 29 70 107 86 1 6 1 29 30 72 85 76 1 11 1 2 34 72 100 84 Data Set 12: IQ and Brain Size Data are from 20 monozygotic (identical) twins (first five rows shown here). PAIR identifies the set of twins, SEX is the gender of the subject (1 = male, 2 = female), ORDER is the birth order, IQ is measured full IQ score, VOL is total brain volume 1cm32, AREA is total brain surface area 1cm22, CCSA is corpus callosum (fissure connecting left and right cerebral hemispheres) surface area 1cm22, CIRC is head circumference (cm), and WT is body weight (kg). Data provided by M. J. Tramo, W. C. Loftus, T. A. Stukel, J. B. Weaver, M. S. Gazziniga. See “Brain Size, Head Size, and IQ in Monozygotic Twins,” Neurology, Vol. 50. TI-83, 84 list names PAIR, SEX, ORDER, IQ, VOL, AREA, (IQBRAIN): CCSA, CIRC, BWT PAIR SEX (1 = M) ORDER IQ VOL AREA CCSA CIRC WT 1 2 1 96 1005 1913.88 6.08 54.7 57.607 1 2 2 89 963 1684.89 5.73 54.2 58.968 2 2 1 87 1035 1902.36 6.22 53.0 64.184 2 2 2 87 1027 1860.24 5.80 52.9 58.514 3 2 1 101 1281 2264.25 7.99 57.8 63.958
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