Minor detail explained

by Adam
(England)

I guess that all you complaining about this are the 5%:



• 99.5% of IQ scores fall between 60 and 140

• 5% of people have an IQ under 70:


. It clearly says- between 60 and 140 and below 70. That leaves an IQ point overlap of 10.

From this, we can deduce that, actually, 0.5% of people have an IQ of below 60 and 4.5% of people have an IQ of between 60-70, which is quite worrying really.

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