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Data for Exercise 7.87
Snow
A data frame/tibble with 34 observations on two variables
concentration of microparticles from melted snow (in parts per billion)
location of snow sample (Antarctica or Greenland)
Antarctica
Greenland
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
# NOT RUN { boxplot(concent ~ site, data = Snow, col = c("lightblue", "lightgreen")) # }
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