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One of the first steps of data analysis is the descriptive analysis; this helps to understand how the data is distributed and provides important information for further steps. This set of exercises will include functions useful for one variable descriptive analysis, including graphs. Before proceeding, it might be helpful to look over the help pages for the length, range, median, IQR, hist, quantile, boxplot, and stem functions.

For this set of exercises you will use a dataset called islands, an R dataset that contains the areas of the world’s major landmasses expressed in squared miles. To load the dataset run the following instruction: data(islands).