Learn By Doing – Measures of Center (Additional Practice)

Here are some additional problems that will show you how all of this comes together.

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:

Depression Days

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

http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/qzLBD_New_Center1.swf

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http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/qzLBD_New_Center2.swf

Hint

http://phhp-faculty-cantrell.sites.medinfo.ufl.edu/files/2012/12/qzLBD_New_Center3.swf

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This document is linked from Measures of Center.