The Estimated Mean calculator computes an estimated mean based on the total number of observation and the sum of the mid-range times frequency for all of the groups.
INSTRUCTIONS: Enter the following:
(SF) Sum of Mid*Frequency for all groups
(nT) Number of Total Observations
Estimated Mean (MeanEst): The calculator returns the estimated mean as a real number.
The Math / Science
This helps in calculating estimated mean for grouped data and also apply for non-grouped data