Favorite Data Sets 
Change to a brief table of the data sets. 
Here are some of the data sets we use in our CPTA classes at the North Carolina School of Science and Math. Many of them are in the textbook; others are from world almanacs, journals, or web sites. Please share your data sets with us. Send them to hernandez@ncssm.edu and we'll add them to this list.
Airplanes: Number
of seats, speed, flight length, fuel consumption, and
operating cost are given for 17 different airplanes that
fly in the U.S. Many pairs of variables have a linear
relationship; some do not. Topic: strong and loose associations, linear vs. curved relationships Source: 1992 World Almanac and Book of Facts Pharos Books, 1991, New York, NY, pg. 670. 

198788 Chicago Bulls
Basketball 199394 Chicago Bulls Basketball: This data set lists the total number of minutes played and total number of points scored for each player on the team. Topic: outliers, comparing the medianmedian line to the leastsquares line. Source: 1989 World Almanac and 1995 World Almanac. 

Charitable
Contributions: This data set gives the amount of
money contributed each year to charitable causes by
individuals in the United States. The years from from
1985 through 1995 are included. Topic: curve fitting Source: 1997 World Almanac and Book of Facts, p. 713 

Dog Food: The recommended
serving size for dog food depends on the weight of the
dog. Topic: curve fitting Source: Alpo dog food bag 

Gestation Period and
Average Longevity: There is a loose positive
relationship, with at least one outlier. Average
longevity is for animals in captivity. Topic: outliers, loose associations Source: 1997 World Almanac and Book of Facts, p. 231 

High School Budget Topic: curve fitting Source: Lakeville Journal, May 9, 1991 

Median Cost of Houses:
Data is from 1980 through 1994, for existing onefamily
houses only. Topic: curve fitting Source: U.S. Bureau of the Census, Statistical Abstract of the United States : 1995 (115th edition), Washington, D.C., 1995 

Light Intensity: A
probe that measures ligth intensity was aimed at a light
source in a dark room. The light intensity was measured
at specific distances from the probe. Topic: curve fitting Source: Collected by a precalculus class at NCSSM using a CBL and a calculator. 

Minimum Wage:
This data set describes the Federal Minimum Hourly Wage
rates between 1950 and 1997. Topic: curve fitting Source: 1997 World Almanac and Book of Facts, p. 170 

Monkey Tricks: Some
handicapped people have access to trained monkey helpers
that can perform household tasks like switching things on
and off. This data set gives the number of tasks each of
nine monkeys can perform along with the number of years
the monkeys have been working with handicapped people. Topic: calculating the medianmedian line by hand Source: Journal of Rehabilitation Research and Development, Volume 28, No. 2; Spring 1991; pp. 9196. 

Postal Rates: The
cost of mailing a first class letter, from 1971 through
1995. Topic: curve fitting Source: U.S. Post Office 

Radioactive Decay Topic: curve fitting, exponential decay Source: Collected in 1995 by Dot Doyle and John Kolena, teachers at NCSSM. 

SAT Score and
Percentage of Students taking the SAT: 1996 data is
given for each state. Topic: associations Source:1997 World Almanac and Book of Facts 

Skid Length: The
Highway Department uses a formula to determine how fast a
car in an accident was traveling based on the length of a
skid. This data was collected under controlled conditions
(surface, weather). Topic: curve fitting 

Sleep: The number of
hours of sleep needed for each age group includes both
naps and nighttime sleep. Topic: curve fitting Source: The Los Angeles Times


Triangles: A
group of students collected data relating the length of
the side of an equilateral triangle with the area of the
triangle. The data was collected by drawing triangles on
graph paper. The students counted the squares on the
graph paper to estimate area. Topic: curve fitting Source: Data Analysis National Council of Teachers of Mathematics, 1988, p. 89. 

Average Weekly
Earnings of Workers in Production: The data refers to
privateindustry production workers in mining and
manufacturing; construction workers in construction; and
nonsupervisory workers in transportation and public
utilities; wholesale and retail trade; finance,
insurance, and real estate; and services. The figures
given are annual averages for weekly earnings. Topic: curve fitting Source: 1997 World Almanac and Book of Facts, p. 171 

Women's 100 Meter
Freestyle: This data set gives the fastest time in
seconds for women's 100 meter freestyle during the summer
olympics from 1912 through 1996. Topic: curve fitting Source: 1997 World Almanac and Book of Facts, p. 860 
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