Cumulative Frequency Median Formula. General Steps Involved in Finding the Median from a Frequency Distribution with Ungrouped Data. Median m L N2 F f C L means lower boundary of the median class N means sum of frequencies F means cumulative frequency before the median class.
However this is not exact it just provides the range. F frequency of median class h class size assuming class size to be equal. To find the median value draw a line across from the middle value of the table.
The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality.
Median m L N2 F f C L means lower boundary of the median class N means sum of frequencies F means cumulative frequency before the median class. 131 Mode of Unclassified Data. To find the exact median the cumulative frequency graph must be drawn. Applying the formula Median 125 34 -2220 20 137.
