How many students have class senator votes?
select count(distinct t1.stuid) from student as t1 join voting_record as t2 on t1.stuid = class_senator_vote
How many of those votes are from the fall election cycle?
select count(distinct t1.stuid) from student as t1 join voting_record as t2 on t1.stuid = class_senator_vote where t2.election_cycle = "Fall"
How many are for male students?
select count(*) from student as t1 join voting_record as t2 on t1.stuid = class_senator_vote where t1.sex = "M" and t2.election_cycle = "Fall"