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Let px be the cumulative distribution function for the


Question: Let P(x) be the cumulative distribution function for the household income distribution in the US in 2009.9 Values of P(x) are in the following table:

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(a) What percent of the households made between $40,000 and $60,000? More than $100,000?

(b) Approximately what was the median income?

(c) Is the statement "More than one-third of households made between $40,000 and $75,000" true or false?

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Mathematics: Let px be the cumulative distribution function for the
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