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AFAIK 145 IQ is three standard deviations above the mean in a normal distribution, and only 0.3% will have that score or higher, so I think the article is off b
by pdonis 3y ago
AFAIK 145 IQ is three standard deviations above the mean in a normal distribution, and only 0.3% will have that score or higher, so I think the article is off by a factor of about 4.
- gnicholas 3y agoLooks like the 1.3 percent was the part that was off. It’s .13 percent: https://www.davidsonacademy.unr.edu/blog/what-does-profoundly-gifted-mean/#:~:text=What%20IQ%20is%20Considered%20Profoundly%20Gifted%3F,and%20are%20considered%20profoundly%20gifted https://www.davidsonacademy.unr.edu/blog/what-does-profoundl.... So the end result is accurate, it would be 2-3 students with that ability level.
- HALtheWise 3y agoNitpick: 0.3% will be outside three standard deviations to either side, with 0.13% above and 0.13% below.
- pdonis 3y agoAh, yes, you're right, we're only interested in the upper tail.