Fifty cities provided information on vacancy rates (in %) in local apartments in the following frequency distribution.

Vacancy Rate (%) Relative Frequency

0 x< 3 0.10

3 x< 6 0.20

6 x< 9 0.40

9 x< 12 0.20

12 x< 15 0.10

1.Construct the frequency distribution.

Vacancy Rate (%) Frequency

0 x < 33

x < 66

x < 99

x <12

12 x < 15

2.How many of the cities had a vacancy rate of at least 6% but less than 9%?

3.How many of the cities had a vacancy rate of at least 9%?