Group Arithmetic Mean is defined as the ratio of sum of the multiple of the frequency & Input values to the sum of the input data. This worksheet may help you to understand how to perform Group Arithmetic Mean. Formula for calculate Group Arithmetic Mean is
Group Arithmetic Mean Example:
X = 5,10,20,50
Frequency = 5,10,20,50
X = [(5 x 5) + (10 x 10) + (20 x 20) + (50 x 50)]/(5 + 10 + 20 + 50)
When try such calculations on your own, use this group arithmetic mean calculator to verify you results.