CREATE TABLE table_11647327_2 (marginal_ordinary_income_tax_rate VARCHAR2, single VARCHAR2)

What is the amount of marginal ordinary income tax rate for single in which the range is $8,351 $33,950?
SELECT COUNT(marginal_ordinary_income_tax_rate) FROM table_11647327_2 WHERE single = "$8,351– $33,950"
SELECT COUNT("marginal_ordinary_income_tax_rate") FROM "table_11647327_2" WHERE "$8,351– $33,950" = "single"