800 SAT is upper 1%ile among "potentially college bound high school seniors", AKA the sort of people who go on to earn a CS/Math/Science/Engineering degree and then join a prominent tech company.
If you haven't seen the SAT math, it is a slightly creative twist on 10th grade math (Algebra and Geometry). Scoring an 800 means you could get an A grade in high school math, and are not so slow at solving the problems, and are careful enough to avoid sloppy mistakes in your work.
"120" IQ is supposedly 2 standard-deviations above the "(human?) population mean", which is ~98%ile of the population, which is well within the margin of error of these sorts of measurements.
If you haven't seen the SAT math, it is a slightly creative twist on 10th grade math (Algebra and Geometry). Scoring an 800 means you could get an A grade in high school math, and are not so slow at solving the problems, and are careful enough to avoid sloppy mistakes in your work.
"120" IQ is supposedly 2 standard-deviations above the "(human?) population mean", which is ~98%ile of the population, which is well within the margin of error of these sorts of measurements.