The collection of data aims to collect evidence for attaining a sound and comprehensible solution to a problem. To understand the inconsistencies in the output, we need the ‘data’ on the generation. It is a process which is conducted to measure and gather information. ‘Data’ is a device, which aids in the comprehension of problems by providing knowledge. Here is this blog, we will talk in detail about the Class 11 collection, organisation and presentation of data. Show
Must Read: Business Services Class 11 Notes What are the Sources of Data?To understand more about the chapter Class 11 collection, organisation and presentation of data, we fist need to know the sources of data. Statistical data can be obtained from two sources:
Primary DataWe further move on to the concept of primary data in class 11 collection, organisation and presentation of data. The important points of primary data are:
Next important form of data in class 11 collection, organisation and presentation of data is secondary data.
How do we collect Data?Collection of data is important in class 11 collection, organisation and presentation of data. It is done by the following ways: Surveys
Preparation of InstrumentThe most prevalent type of tool employed in surveys is a questionnaire/ interview schedule. The questionnaire is either self-directed by the interviewee or conducted by the enumerator or qualified investigator. While drawing-up the questionnaire/interview schedule, the following points should be kept in mind:
Also Read: Emerging Modes of Business Class 11 Notes Mode of Data CollectionThe next important topic in class 11 collection, organisation and presentation of data is the mode of data collection. The aim of probing questions is to survey the acquisition of data. There are three ways of collecting data:
Personal InterviewsPersonal interviews form an important part in the mode of data collection in class 11 collection, organisation and presentation of data. In this method, the researcher has the main role as he/she conducts the interviews face to face with the respondents.Personal interviews are preferred due to various reasons:
The personal interview has some demerits too:
Mailing QuestionnaireAnother important part in class 11 collection, organisation and presentation of data is the mailing questionnaire. In such a method, the data is collected through mail. The questionnaire is mailed to each person and a request is attached to complete and return it on time. The advantages of this method are:
The disadvantages of mail survey are:
Telephone InterviewsIn telephone interviews, the investigator asks questions over the telephone. The advantages of telephone interviews are:
The disadvantages of this method are:
Explore: Accountancy Class 11 NCERT Solutions Pilot SurveyThe pilot survey is another important tool in class 11 collection, organisation and presentation of data.
Census and Sample SurveysCensus and sample surveys are an important tool in class 11 collection, organisation and presentation of data. Census
Sample Survey
Random Sampling
Non-random sampling
Sampling and Non-sampling ErrorsWhile conducting surveys, in class 11 collection, organisation and presentation of data, sampli and non sampling errors find an important mention. Sampling errors
Non-sampling errorsNon-sampling errors are more consequential than sampling errors. Sampling error can be minimized by taking a larger sample, on the other hand, it is difficult to minimize non-sampling error. Even a Census can carry non-sampling errors. Some of the non-sampling errors are:
Must Read: Class 11 Oscillations Notes Census of India and NSSOThe census of India is a very important body of our country and is an important part in the chapter class 11 collection, organisation and presentation of data.
Also Read: Class 11 Formation of a Company We hope the Class 11- Collection of Data notes helped you understand the essential concepts covered in this chapter. Still unsure about which stream to choose after Class 12. Our Leverage Edu experts are here to guide you in selecting the right stream of study to make sure that you make an informed decision. Sign up for a free session with us now! |