Let the household income of residents of the United States be represented by Y = e^X,where X is normally distributed.In 2006,the mean U.S.household income was approximately $50,000.Suppose the standard deviation was 16,000.Estimate the proportion of U.S.households that have an income less than 80,000.

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The Answer of Let the household income of residents of the United States be represented by Y = e^X,where X is normally distributed.In 2006,the mean U.S.household income was approximately $50,000.Suppose the standard deviation was 16,000.Estimate the proportion of U.S.households that have an income less than 80,000.

Let the Household Income of Residents of the United States