What is the undecided percentage of the poll where Goldberg had 6%?
CREATE TABLE table_75617 (
    "Source" text,
    "Date" text,
    "Goldberg" text,
    "Murray" text,
    "Silbert" text,
    "Undecided" text
)
SELECT "Undecided" FROM table_75617 WHERE "Goldberg" = '6%'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the undecided percentage of the poll where Goldberg had 6%? ### Input: CREATE TABLE table_75617 (
    "Source" text,
    "Date" text,
    "Goldberg" text,
    "Murray" text,
    "Silbert" text,
    "Undecided" text
) ### Response: SELECT "Undecided" FROM table_75617 WHERE "Goldberg" = '6%'