Geraldine is a single individual. She receives $5,000 of tax-exempt income in addition to her salary and other investment income. Geraldine's tax return showed the following information: Gross income $90,000 .(4.000) Deductions for adjusted gross income Adjusted gross income Itemized deductions $86,000 (14,400). $71,600 Taxable income Income tax $11.542 Less: Income tax withheld from wages (11,742). Refund $200 Which of the following statements concerning Geraldine's tax rates is (are) correct? 1. Geraldine's average tax rate is 16.1%. 2. Geraldine's average tax rate is 15.1%. 3. Geraldine's effective tax rate is 16.1%. 4. Geraldine's effective tax rate is 15.1%. Statements 1 and 3 are correct. Statements 2 and 4 are correct. Statements 2 and 3 are correct. Statements 1 and 4 are correct