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What Approximate Percentage of Variance in a Population's IQ Score

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What approximate percentage of variance in a population's IQ score is attributed to genetic factors?


Definitions:

Sampling Distribution

The probability distribution of a given random-sample-based statistic.

Sampling Distribution

A statistical distribution of all possible samples of a given size taken from a population.

Standard Deviation

A calculation that determines the amount of fluctuation or spread in a set of numbers.

Sampling Distribution

The probability distribution of a statistic (e.g., the mean) obtained from a large number of samples drawn from a specific population.

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