I got 39. Not my finest hour but 35 is what is needed so - good enough.
Yeah you just wait and hope to get invited to an audition. I'm not sure if that's a straight lottery for everyone who has passed the test or if special consideration is given to past qualifiers (I have qualified 3x before). As soon as you are invited, you have qualified - so they say - so no one is exactly sure how the audition factors in. Obviously you do your best to make a good impression but it's a mystery.
I have never heard a good estimate of the odds of getting a call to an audition. To calculate that, you'd need to know how many people worldwide pass the test and no one is saying. About 2000 people make it to the various auditions which are in cities around the US and sometimes Canada. This time I am signed up for Detroit. In the past I have had auditions in Toronto, L.A. and Boston.
But anyway if you get that far. you are on the list for 18 months. At that point, we figure your odds of getting called for the show are somewhere between 6-1 and 8-1. (That's strictly based on number of qualifiers versus number of new contestants used, and does not factor in whatever intangibles they may see at the audition.)