I sincerely apologize for the late reply. To clarify your doubt, there is a 3 year OPT period after your done with your masters. So 1 attempt for each year which is what is meant by 3 attempts above.
I am fairly new to statistics and probability, I'm currently studying for a career change. I was asked this question but I don't know how to navigate through and get to any kind of an answer.
Previously, the government conducted a lottery to award visas to 20,000 advanced-degree holders first...