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A study of homeowners in the 5th congressional district in Maryland found that their annual...

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A study of homeowners in the 5th congressional district in Maryland found that their annual household incomes are normally distributed with a mean of $41,182 and a standard deviation of $11,990 (based on data from Nielsen Media Research). What percentage of household incomes are between $25,000 and $40,000?62.5% 53.93% 28.23% 37.22%

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