Find the mean of annual household incomes of city

Reference no: EM13145278

Suppose that the standard deviation of the annual household incomes for a city is $20,000. Also we know that 20% of household incomes of the city are below $25,000. Find the mean of the annual household incomes of this city. It is assumed that the annual household incomes follow a normal distribution.

Reference no: EM13145278

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