The following table shows the number of fire hydrants in each neighborhood overseen by Fire District 9.
Neighborhood Number of fire hydrants Clearwater Estates
17
Babbling Brooke
8
88
Hidden Village
21
2121
Shamrock Oak
15
1515
Tower Terrace
12
1212
Find the median number of fire hydrants.
To find the median, we first need to arrange the number of fire hydrants in order from least to greatest:
Neighborhood Number of fire hydrants
Babbling Brooke 8
Tower Terrace 12
Shamrock Oak 15
Clearwater Estates 17
Hidden Village 21
88
2121
There are a total of 7 neighborhoods, which is an odd number, so the median is simply the middle value. In this case, the middle value is 17 since it is the fourth number when the data is arranged in order.
Therefore, the median number of fire hydrants is 17.