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The Department of Welfare wants to know the average outside income for all welfare recipients in the country. The income data are provided below: Income

The Department of Welfare wants to know the average outside income for all welfare recipients in the country. The income data are provided below:

Income Number of Families 0 - 300 25 300 - 600 163 600 - 900 354 900 - 1200 278 1200 - 1500 421 1500 - 1800 603 1800 - 2100 211 2100 - 2400 84 2400 - 2700 32 2700 - 3000 5 Hint class interval length: 300

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