Method: Smoothing

Methods: Scatterplots, Smoothing,
Topics: Sports,
Datafile Name: Belmont Stakes

The Belmont Stakes horse race is the final jewel in the "Triple Crown" of horseracing. It is the oldest and the longest of the three triple crown races. The data give the winners, the length of the race (which has varied from 1.125 miles to 1.625 miles before settling down on the curren...

Methods: Boxplot, Correlation, Scatterplot, Smoothing,
Topics: Government,
Datafile Name: Draft Lottery

In 1970, Congress instituted a random selection process for the military draft. All 366 possible birth dates were placed in plastic capsules in a rotating drum and were selected one by one. The first date drawn from the drum received draft number one and eligible men born on that date were drafte...

Methods: Scatterplots, Smoothing,
Datafile Name: Kentucky Derby

The Kentucky Derby horse race has been run since 1875.

Horses were getting faster for a while, but speeds appear to have leveled off. 

Secretariat's time in 1973 is still the record.

A scatterplot of Time by year reveals that the length of the race changed i...

Methods: Regression, Smoothing, Time Series,
Topics: Sports,
Datafile Name: Tour de France

The Tour de France bicycle race has been run since 1903. It is the best known bicycle race in the world.

The data are facts about each race. Look for trends over time, for differences among countries, and for other patterns.

Methods: Assumptions, Regression, Regression, Partial Regression Plot, Polynomial Regression, Smoothing,
Topics: Environment, Weather,
Datafile Name: US Temperatures

The data gives the normal average January minimum temperature in degrees Fahrenheit with the latitude and longitude of 56 U.S. cities. (For each year from 1931 to 1960, the daily minimum temperatures in January were added together and divided by 31. Then, the averages for each year were averaged ...

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