Question

The frequency distribution on the following page represents the age of people living in poverty in 2009 (in thousands). In this frequency distribution, the class widths are not the same for each class. Approximate the mean and standard deviation age of a person living in poverty. For the open-ended class 65 and older, use 70 as the class midpoint.
Age ..... Frequency
0-17 ...... 15,451
18–24 ..... 6071
25–34 .... 6123
35–44 .... 4756
45–54 .... 4421
55–59 ..... 1792
60-64 .... 1520
65 and older .. 3433


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  • CreatedApril 27, 2015
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