A survey is done about the weight of backpacks of 15 different students. The weight of these backpacks is recorded in pounds. Our goal is to analyze these weights by computing a 5-number-summary, and sketching a histogram and a boxplot.
Here, we record the weight of the 15 backpacks:
Again, these weights are all in pounds.
Using R commands, we compute the minimum, 1st quartile, median, 3rd quartile, and maximum values of this data set.
Finally, to display this data, we construct a histogram and a boxplot.
This data set is quite small, but it gives us a look at how we can record quantitative data (i.e., a list of numbers), and summarize this data by using a 5-number summary and various data displays.