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Combine Mean & Standard Deviation (SD) & Total for More than One Group into a Single One CALCULATOR
This conversion process takes the means, standard deviations, and totals of multiple groups and combines them into a single set of values, making it easier to work with and interpret data.
Conversion Results
Study
Mean 1
SD 1
Total 1
Mean 2
SD 2
Total 2
Mean 3
SD 3
Total 3
Combined Mean
Combined SD
Combined Total
Description of the formula
Variables Definitions
Group 1, Group 2, Group 3:
Mean (mean1, mean2, mean3): The average value of the data in each group.
Standard Deviation (SD) (sd1, sd2, sd3): A measure of the amount of variation or dispersion in each group.
Total (total1, total2, total3): The total number of observations in each group.
Combined Data:
Combined Mean: The weighted average of the means from the selected groups based on the total number of observations.
Combined SD: The combined standard deviation is calculated using a formula that considers the standard deviations and means of the selected groups.
Combined Total: The total number of observations after combining the selected groups.
For more details about these variables and used formulas, read the full article.