1. If you continue browsing the site, you agree to the use of cookies on this website. 2] Non-random sampling. Methods / Sources of Collection of Primary Data : There are several methods for collecting primary data. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Mrs. Suja Santosh Professor RVS College of Nursing, Sulur, Coimbatore 2. Mode of data collection 10. The best app for CBSE students now provides Collection of Data class 11 Notes Economics latest chapter wise notes for quick preparation of CBSE exams and school based annual examinations. Statistics for Economics Class 11 Notes Chapter 2 Collection of Data Sources of Data There are two sources of data Primary Source of Data It implies collection of data from its source of origin. It deals with every aspect of data collection and planning of the same in terms of Difference between Primary and SecondaryData. CBSE Economics Chapter 2 Collection of Data class 11 Notes Economics in PDF are available for free download in myCBSEguide mobile app. • Sample is a section of population from which information is to be obtained. Difference between census method and sampling method. Teachers can use it as a teaching aid. Clipping is a handy way to collect important slides you want to go back to later. Statistics and Data Collection.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. National Sample Survey Organization – It conducts national surveys on socio-economic issues. Data – Information which can be expressed in numbers. 25th percentile is the Q1, 50th percentile is the Median (Q2) and the 75th percentile of the data … 3. Questionnaire – A list of questions with space for answers. Ø Statistics laws are not exact, they are true only on averages. Published Source :– Government publications, Semi-government publications etc. The research problem you explore informs the type of data you’ll collect and the data collection method you’ll use. Collection of data is the first important aspect of statistical survey. Nov 28, 2020 - Notes - Presentation of Data Class 11, Statistics for Economics | EduRev Notes is made by best teachers of Commerce. NCERT Solutions for Class 11 Statistics Economics. It provides complete and continuous demographic record of population. d] Questions should be clear and simple. The 4th observation is 11. Ø Statistics deals with group and doesn’t study individually. b] Indirect Oral Investigation :– Data is collected from third parties who have information about subject of enquiry. CBSE Syllabus Class 12 Maths Physics Chemistry ... CBSE Syllabus Class 11 Mathematics biology chemistry ... CBSE Syllabus Class 10 Maths Science Hindi English ... CBSE Syllabus Class 9 Mathematics Science English Hindi ... Revised Syllabus for Class 12 Mathematics. There are numerous methods of data collection. Collection Of Data In Statistics Class 11 Notes Download In PDF. Data is a plural term. 1. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Collection of Data Statistics Class - XI 2. to the whole group. Give its merit and demerits. Poverty : The greatest challenge faced by the Indian Economy, Class XII (C.B.... Economic reforms since 1991: Class XII - Part-2, Indian Economic reforms since 1991, Class XII, CBSE, Political Science, Power Sharing, Class - 10, Indian Economy between 1950 to 1990, Class XII, CLASS X ECONOMICS CHAPTER 1 DEVELOPMENT CBSE, No public clipboards found for this slide, Collection of Data - Class 11 - Statistics. Please send your queries to ncerthelp@gmail.com you can aslo visit our facebook page to get quick help. Data and Data Collection Quantitative – Numbers, tests, counting, measuring Data Collection Techniques Observations, Tests, Surveys, Document analysis (the research literature) Quantitative Methods Key Factors for High Quality Experimental Design Data should not be contaminated by poor measurement or errors in procedure. Secondary Source of Data It implies collection of data from some agency or institution which already happens to have collected the […] This document is highly rated by Commerce students and has been viewed 5858 times. So Q1 is of this data is 11. Class - XI. Statistics c] Information from correspondents :– Data is collected from agents appointed in the area of investigation. Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Statistics for Class 11 so that you can refer them as and when required. Title: Introduction to Statistics 1 Introduction to Statistics. 8. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Pilot survey 11. Data – Information which can be expressed in numbers. MODULE - 6 Collection and Presentation of Data Notes Presentation and Analysis of Data in Economics 30 making. 2. Statistics Of Class 11 – Measure of Dispersion . a] A covering letter with objectives and scope of survey. We shall learn about what is statistics, important terms, how data is collected, organised and presented. Secondary Data. Collection of data is the first important aspect of statistical survey. f ] Telephonic interviews :– Data is collected through an interview over the telephone with the interviewer. Synopsis 1. It is also called statistical data or simply statistics. Sample survey 6. They can be obtained either from published sources or from any other source, for example, a web site. Copies of these textbooks may be downloaded and used as textbooks or for reference. ... 11 Samples Sample Definition: A Subset of a population. In this chapter, we shall briefly discuss all these aspects regarding data. Examples of research questions that could require you to gather data include how many people will vote for a candidate, what is the best product mix to use and how useful is a drug in curing a disease. Answer: (A) Census method: A statistical investigation in which the data are collected for each and every element/unit of the population, it is termed as Census Method. Question 1. 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In this article, we will explore various types of data, methods of data collec… In the following example Q1= ((15+1)/4)1 =4th observation of the data. • Universe or population in statistics – Total items under study. d] Mailed questionnaire :– Data is collected through questionnaire [list of questions] mailed to the informant. Statistics refers to collecting, organizing, displaying, analyzing, interpreting and presenting the data. a] Primary data is original data collected by the investigator while secondary data is already existing and not original. Generally, the published data are secondary data. 2] Non-sampling errors. Looks like you’ve clipped this slide to already. CBSE Class 11 Statistics Important Questions. • Sample Method – Data is collected from few units of the population and result is applied Some of which are: Method by which the people organize, summarize and communicate information using a variety of tools such as tables, graphs and diagrams 5. b] Errors of non-response of some units of the sample selected. Thus, the data are primary to the source that collects and processes them for the first time and secondary for all sources that later use such data. These two methods are the Census method and Sampling method. Define primary data. NCERT Solutions Class 11 Statistics Chapter 2 Collection Of Data provides us with the useful data to all the topics. c] Class interval : Difference between upper limit and lower limit. Both are suitable in different cases and the knowledge of these methods is important to understand when to apply which method. •Statistics is defined as collection , compilation ... • Statistics make data into information • Develop an understanding of some basic ideas of statistical reliability , stochastic process (probability concepts) . These NCERT books assists the students to score well in their examinations. 2. Introduction of Statistics: Statistics is the study of collection, analysis, interpretation, and organization of data.In applying statistics too, e.g., a scientific, industrial, or societal problem, it is conventional, to begin with, a statistical population or a statistical model process to be studied. Methods of sampling 12. Try-out of the questionnaire on a small group to find its short comings. 2. Types of questions 8. 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