Frequency Graph Example. Relative frequency dfrac550 010 This can be written as a decimal fraction or percent. We need to add a class with 0 frequency before the first class and then find the upper boundary for each class interval.
Using the same above example we can make the following graph. A cumulative frequency diagram is a good way to represent data to find the median which is the middle value. For example for bin 70-79 we have found 2 scores.
This frequency table will help us make better sense of the data given.
So the frequency of bin 70-79 is 2. For example we are assuming the marks that 30 students scored in English considering the total marks to be 50. Here is a list of their results. Draw a cumulative frequency graph for the frequency table below.
