Combine Mean & Standard Deviation (SD) & Total for More than One Group into a Single One CALCULATOR
Introduction
In statistical analysis, it is often necessary to combine data from multiple groups to derive aggregated statistics. This article discusses a tool that allows users to combine mean, standard deviation (SD), and total for more than one group into a single set of combined data. The tool provides a convenient way to analyze and compare information from different groups. Let's explore the variables involved and the calculation process.
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.
