Mathematics, 29.01.2021 06:30 briannabo08

The average income of a large sample of households is 63,000 and the s. d is 7,000. Assume that the data is approximately bell shaped. What percent of these households have income between 42,000 and 77,000.

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The average income of a large sample of households is 63,000 and the s. d is 7,000. Assume that the...

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