A coach has to pick a team of twelve volleyball players from twenty that tryout. Of the twenty, 14 are over six-feet tall, five are left-handed and four are neither over six-feet tail nor are left-handed. If one of the twenty is randomly selected what is the probability that they are: a) over six-feet tall and left-handed b) at most six-feet tall and left-handed c) over six-feet tall and right-handed over six-feet tall given that they are left-handed e) over six-feet tall given that they are not left-handed