Tabulation of Data
Tabulation is the process of arranging data in a systematic manner in rows and columns based on main characteristics.
When tabulating data, it is presented in a well-organized and concise form. This makes it easier to understand, compare, and analyze the data, as well as to draw conclusions.
Additionally, tabulation saves time and expense.
The following points should be considered when tabulating data:
(a) Each table should be given a brief, clear, and appropriate title. This title should be mentioned directly above the table. It is also good to mention the table number.
(b) The length and width of the table should be determined based on the size of the paper. Generally, the number of rows in a table should be more than the number of columns.
(c) Row headings and column headings should be mentioned in the table.
(d) The table should be appropriate for the purpose, visually appealing, clean, and accurate.
(e) The main part of the table should contain statistical information that matches the row and column headings.
(f) A head note should be mentioned in parentheses at the top right of the table, and a foot note should be given to clarify any unclear information within the table. Similarly, if the data is taken from another source, the source should be mentioned at the bottom of the table.
(g) The unit in which the data in the table is measured should be clearly mentioned accordingly.
Construction of Attribute and Interval Tables
(a) Attribute Table
If data is classified and presented in a table based solely on the qualitative aspects of facts that cannot be numerically expressed, such a table is called an attribute table.
These attributes can include religion, gender, character, color, profession, literacy, etc.
An example of an attribute table is presented below.
Table 1: Distribution of Nepal's Population by Different Religions and Gender
S.N. | Religion | Male | Female | Total |
---|---|---|---|---|
1. | Hindu | 10,250,942 | 11,042,962 | 21,293,904 |
2. | Buddhist | 1,146,885 | 1,280,412 | 2,427,297 |
3. | Islam | 649,508 | 659,161 | 1,308,669 |
4. | Kirat | 350,118 | 328,062 | 678,180 |
5. | Christian | 169,800 | 200,226 | 370,026 |
6. | Prakriti | 65,904 | 47,422 | 113,326 |
7. | Bon | 65,302 | 42,222 | 107,524 |
8. | Jain | 1,288 | 1,660 | 2,948 |
9. | Bahai | 68 | 80 | 148 |
10. | Sikh | 434 | 282 | 716 |
11. | Not Stated | 42,221 | 22,022 | 64,243 |
Total | 12,742,490 | 13,644,431 | 26,386,921 |
Source: Statistical Pocket Book of Nepal, 2018 AD (CBS)
(b) Interval Table
If data is divided into different classes/class intervals and presented in a table, such a table is called an interval table.
Below is an interval table showing the marks obtained by 25 students of grade XII in the optional mathematics subject, with the marks grouped into different intervals.
Table 2: Interval Table Showing Marks Obtained by Grade 10 Students in Optional Mathematics
Marks | Number of Students |
---|---|
0-20 | 6 |
20-40 | 9 |
40-60 | 8 |
60-80 | 4 |
80-100 | 2 |
Total | 25 |
Construction and Use of One-Way, Two-Way, and Three-Way Tables
Tables can be divided based on various criteria. Based on the number of attributes or characteristics present in the data, tables can be divided as follows:
(a) One-Way Table or Simple Table
If a table is constructed based on only one attribute or characteristic of the data, such a table is called a one-way or simple table. An example of a one-way table is presented below.
Table 3: One-Way Table Showing Marks Obtained by Grade XI Students in Economics (Full Marks: 100)
Marks | Number of Students |
---|---|
60-70 | 2 |
70-80 | 5 |
80-90 | 8 |
90-100 | 9 |
Total | 24 |
This table presents the marks obtained by 24 students in economics based on a single characteristic (marks). Hence, it is a one-way table. Such a table is used to show only one attribute or characteristic of the data.
(b) Two-Way Table
If a particular set of data is classified and presented in a table based on two interrelated attributes or characteristics, such a table is called a two-way table.
An example of a two-way table is presented below.
Table 4: Two-Way Table Showing Marks Obtained by Grade XI Students in Economics by Gender
Marks | Number of Students | Total |
---|---|---|
Male | Female | |
60-70 | 1 | 1 |
70-80 | 4 | 1 |
80-90 | 5 | 3 |
90-100 | 7 | 2 |
Total | 17 | 7 |
(c) Three-Way Table
If a particular set of data is classified and presented in a table based on three interrelated attributes simultaneously, such a table is called a three-way table.
An example of a three-way table based on hypothetical data is presented below.
Table 5: Population Distribution of Ward No. 3 of Chhappar Municipality by Age Group, Gender, and Literacy
Age Group (Years) | Literate Population | Illiterate Population | Row Total |
---|---|---|---|
Female | Male | Total | |
0-20 | 1 | 2 | 3 |
20-40 | 4 | 1 | 5 |
40-60 | 6 | 2 | 8 |
60-80 | 8 | 2 | 10 |
80-100 | 2 | 1 | 3 |
Column Total | 21 | 8 | 29 |
Grand Total | 45 |