The data show the
number of railroad crossing accidents for the 50 states
of the United States for a specific year. Construct a
histogram, frequency polygon, and ogive for the data.
Comment on the skewness of the distribution. (The data
in this exercise will be used for Exercise 14 in this
section.)
Class limits Frequency
1–43 24
44–86 17
87–129 3
130–172 4
173–215 1
216–258 0
259–301 0
302–344 1