Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_20683381_2 (date_of_opinion_poll VARCHAR, undecided VARCHAR)
### Question:
How many polls taken on different dates show an undecided percentage of 25%?
### Answer:
SELECT COUNT(date_of_opinion_poll) FROM table_20683381_2 WHERE undecided = "25%"