Among the users who use a Galaxy Note 2, how many of them are female?
Galaxy Note 2 refers to device_model = 'Galaxy Note 2'; female refers to gender = 'F';
SELECT COUNT(T1.device_id) FROM phone_brand_device_model2 AS T1 INNER JOIN gender_age AS T2 ON T2.device_id = T1.device_id WHERE T2.gender = 'F' AND T1.device_model = 'Galaxy Note 2'