Question: For the data in Exercise 5 in this section, construct a histogram, frequency polygon, and give using relative frequencies. What proportion of the railroad crossing

For the data in Exercise 5 in this section, construct a histogram, frequency polygon, and give using relative frequencies. What proportion of the railroad crossing accidents are less than 87?
In exercise 5:
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

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