Step - 6 Selecting Samples

Duration: 3 min

This video lesson is available to enrolled students.

Return to /learn/DSSSB-TGT-COMPUTER-SCIENCE-PAPER-2/mathematics-i-ii-iii-iv/research-process-steps/sampling-fundamentals-types-probability-non-probability-sampling/asset-step-6-selecting-samples after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. About Course: About the Course
  2. Programming, Data Structures, OOP & Java: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling, Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Java, OOPS with C++, Java Fundamentals, Array, String, IO & References, Language Design, Intro to Compilers, Visual Basics, Syntax Analysis: Bottom-Up, Object Oriented Technology
  3. Computer Networks, TCP/IP & Network Security: Introduction to CN, Data Communication, DLL: Flow Control, DLL: Access Control, DLL: Error Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Access Technologies, Network Security, Society, Law & Ethics, Cloud Computing, Mobile Computing, Net Layer:Routing Protocol, Cyber Safety and Security
  4. Teaching Methodology: Child Development, Concept of Pedagogy, Theories, Inclusive Education, Experiential Pedagogy, Assessment & Evaluation, Curriculum Framework & Reforms, National Education Policy (NEP) 2020, Psychology, Teaching-Learning Process, Personality Development, Teaching Methods & Strategies, Learning and Motivation, Learners & Learning Process, Factors Affecting Teaching, Methods of Teaching, Nature, Objectives & Characteristics of Teaching, Teaching-Learning Aids & ICT Integration, Classroom Management & Communication, Evaluation, Assessment & Measurement, Curriculum & School Environment, Inclusive Education & Special Needs, Professional Development & Ethics
  5. Digital Electronics / Boolean Logic: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation, Analog-Digital Conversion
  6. Operating Systems & Linux: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Threads & Process Creation, Deadlock, Memory Management, Virtual Memory, File Management, Disc Scheduling, Unix OS, Linux OS, Distributed Systems, Windows OS
  7. Data Base Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, File Organization & Indexing, Transaction Management, Concurrency Control, Database Security & Authorization, Database Recovery, Data Warehousing & Mining
  8. Internet & Web Technologies: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Protocols & Services, Web Publishing & Hosting, Server Side & Security, HTML Basics, CSS, Emerging Technologies, JavaScript-Basics, .Net Programming, Electronic Data Interchange and E-Commerce, XML
  9. Computer Fundamentals, IT Basics & Architecture: Basics of COA, Cache Memory Organization, Input Output Organisation, Register Transfer and Microoperations, Control Unit Design, Programming the Basic Computer, Terms & Abbreviations, MS Office Applications, Instr Formats & Modes, Floating Point Rep
  10. Python Language: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  11. Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management, extras, Fundamentals of Systems and Information Systems
  12. Design & Analysis of Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Dynamic Programming, Minimum Spanning Trees, Shortest Path Algos, Advanced Algorithms
  13. Mathematics - I, II, III, IV: Permutation and Combination, Logarithm, Linear Algebra, Algebra, Calculus, Trigonometry, Vectors, Set Theory, Functions, Relations, Propositional and Predicate Logic, Research Process Steps, Graph Theory
  14. Computer Graphics, Multimedia & Mobile Computing: Basics of Computer Graphics, 2-D Geometrical Transforms and Viewing, 3-D Object Representation, Geometric Transformations and Viewing, Multimedia
  15. Emerging Trends: Emerging Tech Trends, Knowledge Representation, Natural Language Processing
  16. Statistical Techniques: Probability, Statistics
  17. Interpolation - DI: Data Interpretation
  18. Basis of Physics: Physics
  19. Previous Year Paper:
  20. Business Studies and Management: Business Communication, Business Organization and Management, Financial Accounting, Business Economics, Management Information System (MIS), Knowledge Management & New Economy
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video explains the concept of sampling in research, presented as Step 6 in the research process. The instructor begins by defining sampling as the process of selecting a subset from a larger population to draw conclusions. To make the concept relatable, the video uses everyday examples: cooking vegetables, where one checks a few pieces to infer the doneness of the whole batch, and tasting a spoonful of kheer to determine the sweetness of the entire dish. The video then transitions to a more formal research example, illustrating how a school fair organizer can use sampling to determine popular games by surveying a small, representative group of students instead of the entire school. The core message is that sampling is a practical, time-saving, and cost-effective method that allows researchers to make valid inferences about a large population based on a smaller, manageable sample.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video introduces 'Step 6: Selecting Samples' as the next phase in the research process. The instructor explains that sampling involves selecting a subset from a larger population to draw conclusions. To illustrate this, the on-screen text and narration use the example of cooking vegetables: instead of checking every single slice, one checks a few pieces to infer the doneness of the entire batch. This is paralleled with tasting a spoonful of kheer to determine the sweetness of the whole dish. The text explicitly states that these examples show how sampling allows us to 'draw conclusions about a larger population based on a smaller, representative subset.'

  2. 2:00 – 3:02 02:00-03:02

    The video continues by providing a formal research example to reinforce the concept. The on-screen text describes a scenario where a school fair organizer wants to know which games are most popular. The instructor explains that surveying every student would be 'time-consuming and difficult,' so a more efficient method is to select a small, representative group. The text states that by gathering opinions from this smaller group, one can 'get a good idea of what activities are likely to be popular' and plan an event that most students will enjoy. This demonstrates the practical benefits of sampling, which are explicitly listed as reducing cost and saving time.

The video effectively teaches the concept of sampling by first grounding it in relatable, everyday experiences like cooking and tasting food, and then transitioning to a formal research application. This progression from the familiar to the academic helps students understand that sampling is a logical and necessary method for making inferences about a large population. The core idea is that a well-chosen, representative sample can provide reliable information, making research more efficient and practical. The video concludes by emphasizing the key benefits of sampling: it reduces cost and saves time, making research more efficient.

Loading lesson…