What is meant by individual series? Give one example.

Individual series : Under this method, the value of all the units are shown separately The following example will illustrate this:

Example : The marks obtained by 10 students in statistics are following :

The individual series may be arranged in following two orders :

(a) Ascending Order : When data are arranged in ascending order i.e., a small value to a big value it is known as arranging them in ascending order. The figures of above example may be arranged in ascending order as follows :

(b) Descending Order : When data are arranged serially starting from a big value to small value it is known as arrangement of data in descending order.