Since the data is already in ascending lowest to highest order all we need to do is find the middle number. Jan 20 2020 Updated. In a frequency table the observations are already arranged in an ascending order.
For grouped data we cannot find the exact Mean Median and Mode we can only give estimates.
How to obtain the mean median and mode of from a frequency table for grouped data and discrete data How to get averages from grouped frequency tables How to use a TI-84 calculator to calculate the Mean and Standard Deviation of a Grouped Frequency Distribution with video lessons examples and step-by-step solutions. Since the data is already in ascending lowest to highest order all we need to do is find the middle number. Median L n 2 - C f f x h Where L Lower limit of the median class n Number of observations C f cumulative frequency of the class preceding the median class f Frequency of the Median class h Class size or Width of the Median Class. Estimated Median L n2 BG w.