Question: Fifty cities provided information on vacancy rates in percent in local

Fifty cities provided information on vacancy rates (in percent) in local apartments in the following frequency distribution.
Vacancy Rate (in percent) .... Frequency
0 up to 3 ........... 5
3 up to 6 ........... 10
6 up to 9 ........... 20
9 up to 12 ........... 10
12 up to 15 ......... 5

a. Construct the corresponding relative frequency distribution, cumulative frequency distribution, and cumulative relative frequency distribution.
b. How many of the cities had a vacancy rate less than 12%? What percent of the cities had a vacancy rate of at least 6% but less than 9%? What percent of the cities had a vacancy rate of less than 9%?
c. Construct a histogram. Comment on the shape of the distribution.


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  • CreatedJanuary 28, 2015
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