In how many cases where the subject was a female was the subject's status listed as Deceased?
 female refers to gender = 'F'; subject's status listed as Deceased refers to subject_statuses = 'Deceased'
SELECT COUNT(T1.case_number) FROM incidents AS T1 INNER JOIN subjects AS T2 ON T1.case_number = T2.case_number WHERE T2.gender = 'F' AND T1.subject_statuses = 'Deceased'