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:
S.No. |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
Marks |
16 |
18 |
22 |
19 |
14 |
20 |
25 |
30 |
32 |
50 |
The individual series may be arranged in following two orders:
(a) Ascending orders:
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:
S.No. |
1 |
2 |
3 |
5 |
6 |
7 |
8 |
9 |
10 |
Marks |
14 |
16 |
19 |
20 |
22 |
25 |
30 |
32 |
50 |
(b) Descending orders:
When data are arranged serially starting from a big value to small value it is known as the arrangement of data in descending order.
S.No. |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
Marks |
50 |
32 |
30 |
25 |
22 |
20 |
19 |
18 |
16 |
14 |