Cumulative Frequency Of Median Class. The median is present in the group class which corresponds to the cumulative frequency in which n2 lies. May 03 2020 The median is in the class where the cumulative frequency reaches half the sum of the absolute frequencies.
To calculate the cumulative frequencies add the frequencies together. 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. Apply formula to find Median.
Learn more about Frequency Polygon here.
Height Greater than type. That is to say the median is within the class. The cumulative frequency just greater than 50 is 56 and the corresponding class is 150 - 155. Cf cumulative frequency of class preceding the median class f frequency of median class h class size assuming class size to be equal.
