A heritability coefficient of 0.70 for math ability indicates that 70% of the variation in math ability between individuals is due to genetic factors.

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The heritability coefficient, in this context, quantifies the proportion of variation in a trait (such as math ability) among individuals in a population that can be attributed to genetic differences. A coefficient of 0.70 suggests that 70% of the observed variation in math ability is due to genetic factors.

A Heritability Coefficient of 0