The standard deviation of the correlation coefficient for the typical gene is around 0.02-0.04, indicating that the top correlated genes (0.6) are 20 standard deviations away from zero, hence highly significant.
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The standard deviation of the correlation coefficient for the typical gene is around 0.02-0.04, indicating that the top correlated genes (0.6) are 20 standard deviations away from zero, hence highly significant.