IQ notes

In children at least, IQ = Mental age / Chronological age


100 Average for population

120 Grammar school level

136 Top 6% of population

140 Top 4% of population

148 Top 2% of population

150 Genius level

155 Top 1% of population

Breast fed babies have IQ's on average 8 points higher than non-breastfed babies.
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