Forty-two cities provided information on vacancy rates (in percent) for local apartments in the following frequency dist

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Forty Two Cities Provided Information On Vacancy Rates In Percent For Local Apartments In The Following Frequency Dist 1 (43.2 KiB) Viewed 117 times

Forty-two cities provided information on vacancy rates (in percent) for local apartments in the following frequency distribution. Vacancy Rate (in percent) up to 3 3 up to 6 6 up to 9 9 up to 12 12 up to 15 Frequency 9 5 10 6 12 a. Calculate the average vacancy rate. (Round your answer to 2 decimal places.) Average vacancy rate b. Calculate the variance and the standard deviation for this sample. (Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) Variance Standard deviation