At a meeting of information systems officers for regional offices of a national company, a survey was taken to determine the number of employees the officers supervise in the operation of their departments, where X is the number of employees overseen by each information systems officer.
X f
1 8
2 4
3 11
4 8
5 4
How many regional offices are represented in the survey results?
5
11
35
40
The total number of information systems officers surveyed can be obtained by adding up all the frequencies:
8 + 4 + 11 + 8 + 4 = 35
Therefore, 35 regional offices are represented in the survey results.
The correct answer is 35.