SELECT t1.sex FROM people AS t1 JOIN candidate AS t2 ON t1.people_id  =  t2.people_id GROUP BY t1.sex ORDER BY avg(t2.unsure_rate) DESC LIMIT 1
What is the sex of the candidate who had the highest unsure rate?
SELECT t1.sex FROM people AS t1 JOIN candidate AS t2 ON t1.people_id = t2.people_id GROUP BY t1.sex ORDER BY avg ( t2.unsure_rate ) DESC LIMIT 1
select t1 . sex from people as t1 join candidate as t2 on t1 . people_id = t2 . people_id group by t1 . sex order by avg ( t2 . unsure_rate ) desc limit value
What is the sex of the candidate who had the highest unsure rate ?