According to the internal revenue service income tax

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Reference no: EM13645012

According to the Internal Revenue Service, income tax returns one year averaged $1,332 in refunds for taxpayers with a standard deviation of $725. Assume that a negative refund means that the taxpayer owed money to the government.

a) What proportion of tax returns show a refund greater than $2,000?

b) What proportion of the tax returns show that the taxpayer owes money to the government?

c) What proportion of the tax returns show a refund between $100 and $700?

Reference no: EM13645012

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