Compute the 2015 standard deduction for the following taxpayers.

basic stand deduction:single 6300 married 12600 surviving spouse 12600 Head Household 9250 married 6300

Amount of each additional standard deduction single 1550 married 1250 surviving spouse 1250 Head Household 1250 married 1250

Ruby and Woody are married and file a joint tax return. Ruby is age 66 and Woody is 69. Their taxable retirement income is $15,875