June 17, 2021
In Form 4, we have already learnt about the ways to interpret the dispersion for ungrouped data. For a grouped data, we can observe the dispersion by using histogram and frequency polygon.
Before that, we need to know the class interval, lower limit, upper limit, lower boundary, upper boundary and cumulative frequency that can be obtained from a frequency table.
Let’s watch this video to get explanation about this subtopic (7.1: Dispersion)
Hopefully, all this video will help your understanding for this subtopic. If you have any inquiry, you can directly comment.