Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_47883 ( "Poll Source" text, "Dates administered" text, "Democrat: Beverly Perdue" text, "Republican: Pat McCrory" text, "Libertarian: Michael Munger" text, "Lead Margin" real )

### Question ###
What is the percentage of Perdue when McCrory has 37% and Munger has 6%?

### Accurate SQL ###

SELECT "Democrat: Beverly Perdue" FROM table_47883 WHERE "Republican: Pat McCrory" = '37%' AND "Libertarian: Michael Munger" = '6%'