In the workplace, depression is a leading cause of absenteeism and loss of productivity (Greenberg, et al. 1993). To assess the degree to which people suffer from depression, prior to receiving treatment, data were collected on the number of days that 105 patients were depressed prior to starting a new treatment. These data are displayed in the following table and histogram:
Days | Count |
[20–60] | 5 |
[60–100] | 10 |
[100–140] | 20 |
[140–180] | 30 |
[180–220] | 16 |
[220–260] | 10 |
[260–300] | 6 |
[300–340] | 4 |
[340–380] | 2 |
[380–420] | 0 |
[420–460] | 0 |
[460–500] | 0 |
[500–540] | 2 |
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