How rare is an IQ of 140?
An IQ of 140 is achieved by: A) 1 in every 261 people. B) 1 in every 1024 people. C) 1 in every 5206 people. Answer: A person who registers an IQ of 140 on an IQ series of tests for which the mean is 100 and standard deviation 15, is in the 99.616957th percentile. …