Cumulative Frequency Diagram Calculator. A cumulative frequency diagram is drawn by plotting the upper class boundary. H Y160 160.
Find the median values. Therefore the median would be the 13th value. The cumulative frequency is obtained by adding up the frequencies as you go along to give a running total.
Unit 16 Section 3.
A student is chosen at random. In this section we also look at the idea of quartiles the interquartile range and the semiinterquartile range. The classes go on the X-axis and the associated cumulative frequencies go on the Y-axis. To calculate cumulative frequency we add the first frequency to the second frequency then add the third frequency to the result and the process continues.
