Calculating a weighted mean and weighted SD from multiple mean/SD/different sample sizes?
27102
Combining two covariance matrices
128523
Comparison of two means
20019
Sample size for categorical data
63580
Convergence in distribution, probability, and 2nd mean
120275
How do I obtain the "final" standard deviation from a series of values containing individual (also null) SD values?
101055
How to calculate a mean and standard deviation for a lognormal distribution using 2 percentiles
15530
Variance of sample mean.
158584
How to calculate the standard error of a proportion using weighted data?
52894
How to test if these two samples are from the same distribution?
53004
How to calculate a sample size for validating correct/incorrectness of records in a data table?
139710
How do I combine standard deviations of two groups?
81170
How to replace NA with mean by group / subset?
117343
Average of multiple columns
134716
Simultaneous fit to three datasets with measurement errors using different models but same parameters
122469
When combining p-values, why not just averaging?
89511
Calculating MEAN and STANDARD DEVIATION confussed
56193
How does one go about determining the standard deviation of an entire sample data set?