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

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

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

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

This explains about the importance of statistics in economics with the real-world example. What statistics does and how it helps in identifying the causes of a problem and finding solutions for the problem.

Discussion about the basic problem in economics which is Problem of Choice and why there is problem of choice. It also shed some light on the concept of scarcity.

Discussion about the importance of economics in our daily life. Who are gainfully employed, and who all are involved in economic activity.

00:00 Introduction00:35 China's Economy02:13 Pakistan's Economy04:09 Conclusion