Collection of Data | Sources of Data | Mode of Data Collection | Chapter 2 | Class XI, XII

Presentation of Data | Chapter 4 | Statistics for Economics | Class XI, XII

00:00 Different forms of Presentation of Data00:11 Textual Presentation00:41 Tabular Presentation01:21 Qualitative Classification01:30 Quantitative Classification02:16 Temporal Classification02:35 Spatial Classification02:49 A good table04:39 Simple Bar Diagrams05:12 Multiple Bar Diagrams05:33 Component Bar Diagrams06:17 Pie Diagrams06:46 Histogram07:36 Frequency Polygon07:51 Frequency Curve08:01 Ogive08:58 Arithmetic Line Graph

Frequency Distribution of Raw Data | Organisation of Data | Chapter 3 | Class XI, XII

00:00 Frequency Distribution - Introduction00:16 Classes00:24 Frequency00:56 Class lower limit and Class upper limit01:09 Class Interval / Class Width01:27 Class Mid-Point / Class Mark02:18 Frequency Curve02:35 Should we have equal or unequal sized class intervals?03:16 How many classes should we have?03:35 What should be the size of each class?04:01 How should we determine the class limits?04:18 Inclusive class interval04:47 Exclusive class interval06:10 Adjustment in class interval07:28 Frequency and Class Frequency08:01 Finding class frequency by tally marking08:36 Loss of Information09:32 Frequency distribution with unequal classes10:18 Frequency Array10:50 Bivariate Frequency Distribution

Organisation of Data | Classification of Data | Types of Variables | Chapter 3 | Class XI, XII

00:00 Introduction00:53 Raw Data02:44 Classification of Data04:10 Variables - Continuous and Discreet

Census and Sample Surveys | Sampling Error | Collection of Data | Chapter 2 | Class XI, XII

00:00 Census00:36 Population and Sample01:55 Advantages of Sample Survey02:15 Methods of Sampling - Random Sampling and Non-Random Sampling04:13 Sampling Error05:32 Non-Sampling Error06:31 Census of India and NSSO

Collection of Data | Sources of Data | Mode of Data Collection | Chapter 2 | Class XI, XII

00:00 Data01:02 Sources of Data - Primary Data and Secondary Data02:15 Preparation of Instrument04:00 Open Ended Question (Unstructured Question) and Closed Ended Question (Structured Question)04:56 Mode of Data Collection - Personal Interview, Telephonic Interview, Mailed Interview05:59 Pilot Survey