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Data : Its Source And Compilation
Describe the main steps of Data Analysis.
(i) Collection of data is a first step in its utilisation. Care is taken to record data as accurately as possible. Because defective data lead to defective results.
(ii) Data classification involves editing, classification and organisation of the collected data to present the same in condensed forms. The sum total of computing, tabulating and statistically transforming relevant information in a suitable format is known as data analysis. The first in this process is classification of the data according to some common characteristics.
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An ogive is a method in which
If both ends of a group are taken in frequency grouping it is called.
Differentiate between data and information.
What do you mean by data processing?
What is advantage of foot note in a table?
What do you mean by primary sources of data?
Enumerate five sources of secondary data.
Discuss the national and international agencies where from secondary data may be collected.
What is the importance of an index number? Taking an example examine the process of calculating an index number and show the changes.
In a class of 35 students of geography following marks were obtained out of a 10 mark unit text - 1, 0, 2, 3, 4, 5, 6, 7, 2, 3, 4, 0, 2, 5, 8, 4, 5, 3, 6, 3, 2, 7, 6, 5, 4, 3, 7, 8, 9, 7, 9, 4, 5, 4, 3. Represent the data in the form of a group frequency distribution.
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