Using the standard definition of IQ (mean 100, std dev 15), 145 is +3 standard deviations, so that should be in the top 0.135%, which is consistent with the 2-3

Using the standard definition of IQ (mean 100, std dev 15), 145 is +3 standard deviations, so that should be in the top 0.135%, which is consistent with the 2-3 students per career number. I'm not sure where the article got the 1.3% number, it could be either a decimal point error, or this could be a specific test that's primarily given to gifted students and so both numbers could be correct.