I have a triplicate data set in which each set of data has a mean and standard deviation. I want to report the mean of the means but the error should reflect the standard deviations within the data sets, not the standard deviation of the means.

Can I simply take the mean of the standard deviations and report: mean of means +/- mean of standard deviations.

Should I report each individual data set mean & s.d. and then also report the mean of means +/- s.d.?

Is there something else I should be reporting?

Thank you

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