Data Compilation and Presentation| Practical Work in Geography Class 12

In this article, we will delve deep into the topic of “Data Compilation and Presentation” from Chapter 1 of the NCERT Class 12 Practical Work Geography book. These notes are specially curated by an expert team at GeeksforGeeks for all the students.

Data Compilation and Presentation

Data can be compiled and presented in various ways:

Absolute Data

• This is the original form of data, presented as integers.
• When data are presented in their original form as integers, they are called absolute data or raw data. For example, the total population of a country or a state, the total production of a crop or a manufacturing industry, etc.
• For example, the total population of a country or the production of a crop.

Percentage/Ratio

• Data can also be presented as ratios or percentages, often calculated from a common parameter.
• Sometimes data are tabulated in a ratio or percentage form that are computed from a common parameter, such as literacy rate or growth rate of population, percentage of agricultural products or industrial products, etc.
• For instance, literacy rates or population growth rates.
• FORMULA:
  Total Literates / Total Population × 100

Index Number

• An index number is a statistical measure used to show changes in variables over time, location, or other characteristics.
• It’s commonly used in economics and business to track changes in price and quantity.
• A statistical measure designed to show changes in variable or a group of related variables with respect to time, geographic location or other characteristics. It is to be noted that index numbers not only measure changes over a period of time but also compare economic conditions of different locations, industries, cities or countries. Index number is widely used in economics and business to see changes in price and quantity.
• There are different methods for calculating index numbers, but the simple aggregate method is often used.
• This method compares current year production to a base year, usually set at 100.
• FORMULA:
  ∑q1 / ∑q0 ×100
  ∑q1 = Total of the current year production
  ∑q0 = Total of the base year production

Data Compilation and Presentation: Short Notes

• When data are presented in their original form as integers, they are called absolute data or raw data. For example, the total population of a country or a state, the total production of a crop or a manufacturing industry, etc.
• Percentage/Ratio: Sometimes data are tabulated in a ratio or percentage form that are computed from a common parameter, such as literacy rate or growth rate of population, percentage of agricultural products or industrial products, etc.
• An index number is a statistical measure designed to show changes in variable or a group of related variables with respect to time, geographic location or other characteristics. It is to be noted that index numbers not only measure changes over a period of time but also compare economic conditions of different locations, industries, cities or countries. Index number is widely used in economics and business to see changes in price and quantity. There are various methods for the calculation of index number.

Conclusion – Practical Work in Geography Class 12 Data Compilation and Presentation

In conclusion, this article has provided a comprehensive overview of “Data Compilation and Presentation” as outlined in Chapter 1 of the NCERT Class 12 Practical Work Geography book. The article elucidates various methods of data presentation, including absolute data, percentage/ratio representation, and index numbers. Through clear explanations and illustrative examples, it underscores the significance of each method in conveying information accurately. Furthermore, the article delves into the concept of index numbers, a statistical measure utilized to track changes in variables over time, geography, or other characteristics. By employing index numbers, analysts can effectively monitor economic trends and compare conditions across different locations, industries, or time periods. This article serves as a valuable resource for students seeking to enhance their proficiency in data compilation and presentation techniques.

FAQs on Practical Work in Geography Class 12 Data Compilation and Presentation

What is representation of data in geography practical class 12?

The transformation of data through visual methods like graphs, diagrams, maps and charts is called representation of data. Such a form of the presentation of data makes it easy to understand the patterns of population growth, distribution and the density, sex ratio, age–sex composition, occupational structure, etc.

What is the need of data Class 12 geography practical?

Similarly, data related to the total population, density, number of migrants, occupation of people, their salaries, industries, means of transportation and communication is needed to study the growth of a city. Thus, data plays an important role in geographical analysis.

What are the methods of data collection in geography class 12?

Primary Data Collection Methods

• Direct personal Interviews.
• Indirect Personal Interviews.
• Data collection through Questionnaire.
• Data collection through Enumerators.
• Data collection through Local Sources.

What is GIS Class 12 geography Practical?

The full form of GIS is the Geographic Information System. It is a system designed to capture, evaluate, manipulate, handle, and view all forms of geographical & spatial information and data.

What is GIS full form?

GIS, or geographic information systems, are computer-based tools used to store, visualize, analyze, and interpret geographic data. Geographic data (also called spatial, or geospatial data) identifies the geographic location of features.