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

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

a. Calculate the average vacancy rate.
b. Calculate the variance and the standard deviation for this sample.



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  • CreatedJanuary 28, 2015
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