Parents are sexist and expect way too much (want me to clean the whole house)?

Ok so I'm 15 and its summer time yesterday my dad yelled at me and he said "its summer time, you're not supposed to sit at home, go study, clean the house, pray, anything but don't do nothing" OK LIKE I'm IN SCHOOL FOR LIKE 7 MONTHS AND.THE TWO MONTHS I HAVE OFF YOU EXPECT ME TO CLEAN? I don't mind chores, like give me a chore and ill do it, I don't mind but they ask me to clean the whole house. They tell me to clean their bedroom and my brothers MY BROTHER IS THIRTEEN AND LIVES ON HIS XBOX THEY EXPECT ME TO CLEAN HIS ROOM WHILE HE PLAYS XBOX JUST CAUSEE I'm A GIRL IS THIS FAIR OR AM I BEING SPOILED? o