Example 1: drawing a cumulative frequency graph This table shows the time (in minutes) that 100100100 students take to get to school. Draw a cumulative frequency graph to represent this distribution. Calculate the cumulative frequency values for the data set. The cumulative frequency is the ...
When dealing with a cumulative frequency curve, "n" is the cumulative frequency (25 in the above example). Therefore the median would be the 13th value. To find this, on the cumulative frequency curve, find 13 on the y-axis (which should be labelled cumulative frequency). The corresponding...