The numbers of cars per 1000 inhabitants (cars
), the total number of known mortal accidents (deaths
), and the country population/1000 (population
) for the 25 member countries of the European Union for the year 2004
CARS2004
A data frame with 25 observations on the following 4 variables:
country
(a factor with levels Austria
, Belgium
, Cyprus
, Czech Republic
, Denmark
, Estonia
, Finland
, France
, Germany
, Greece
, Hungary
, Ireland
, Italy
, Latvia
, Lithuania
, Luxembourg
, Malta
, Netherlands
, Poland
, Portugal
, Slovakia
, Slovenia
, Spain
, Sweden
, and United Kingdom
)
cars
(number of cars per 1000 inhabitants)
deaths
(total number of known mortal accidents)
population
(country population/1000)
Ugarte, M. D., Militino, A. F., and Arnholt, A. T. 2015. Probability and Statistics with R, Second Edition. Chapman & Hall / CRC.
plot(deaths ~ cars, data = CARS2004)
ggplot(data = CARS2004, aes(x = population, y = deaths, color = cars)) + geom_point()