520. A box plot is a graph that uses quartiles to display
the distribution of data. The following is a box plot of the
room sizes in Abbot Hall given in problem #493. Verify
that the horizontal lines in the graph mark the minimum,
1st Quartile (Q1), median, 3rd Quartile (Q3), and maximum
of the data set.
(a) How does the box plot compare to the histogram for
rooms in Abbot?
(b) Draw your own box plot of the room sizes in Langdell,
using the list below.
(c) How do the two dorms compare? It is helpful to con-
struct side-by-side box plots, on the same scale, to make a
comparison.
Room Size (sq ft)
330
300
270
240
210
180
150
Langdell (square feet)
120
Abbot
156
128 128 133 140 149 152 153
163 165 168 171 173 178 179 179
182 185 186 189 189 189 190 193
204 215 216 286 289 290 292