IQ scores have a mean of 100 and a standard dev of 16.Albert Einstein reportedly had an IQ of 160.
What is the difference between Einsteins IQ and the mean?
How many standard dev is that?
Convert Einsteins IQ score to a z-score
If we consider ''usual IQ scores to be those that convert z scores between -2 and 2,is Einsteins IQ usual or not?
the difference is 160 - 100 = 60
Because IQ standard deviation is 16, there are between 3 and 4 deviation (100,116,132,148)
z = (160 - 60) / 16 = 3.75
His IQ is unusual.