Need Help, Shiva shanti 2

Hi im a new time grower and things are going good. I have bought three seeds of the Shiva shanti 2 from http://bonzaseeds.com/products.php?product=Shiva-Shanti-II-Cannabis-Seeds. Now I am wondering, what are the chances of the being female? what is the ratio to female to male or if they will be all female? Also do male plants produce seeds? Thanks alot for any info.