Class 11 Economics | Mean| Lecture-2| Discrete Series|🔥 (Statistics Made Easy)
📘 Class 11 Economics | Mean (Statistics) – Complete Explanation In this video, we explain Mean (Arithmetic Mean) from Class 11 Economics – Statistics in a simple and step-by-step manner. This lecture is strictly NCERT based and helpful for school exams, unit tests, and final exams. 👉 What you will learn in this video: • Meaning of Mean in Statistics • Formula of Arithmetic Mean • Solved numerical problems • Common mistakes students make • Exam-oriented tips to score full marks 📌 Chapter: Measures of Central Tendency 📌 Topic: Mean (Arithmetic Mean) 🎯 Who should watch this video? ✔ Class 11 Economics students ✔ Students who find Statistics difficult ✔ Students preparing for exams and revisions 🏫 About Youth Academy Youth Academy provides concept-based and exam-oriented teaching for classes 9th to 12th with experienced faculty, smart board classes, regular tests, and proper doubt-solving. 📞 Call / WhatsApp: 8448485625 📍 Address: 1st Floor, Raj Complex, Bhooton Wali Gali, Nangloi, Delhi 📌Introduction to Mean and Chapter Overview: Starting the "Mean" chapter in statistics (0:00) Discussion of formulas and application to questions (0:06) Relating Mean to 10th-grade mathematics concepts (0:29) Meaning of Mean, Median, and Mode: Meaning of Mean as Average (1:03) Meaning of Median as Middle Value (1:34) Meaning of Mode as Highest Frequency (1:44) Types of Data Series for Mean Calculation: Individual Series (Ungrouped Data): Explained with examples (2:11) Discrete Series: Explained with x and frequency (f) values (2:45) Continuous Series: Explained with data ranges (3:20) Formulas for Mean Calculation (by method): Individual Series Formulas: Direct Method (3:55) Short-cut Method (4:20) Step-Deviation Method (5:02) Discrete Series Formulas: Direct Method (5:26) Short-cut Method (5:37) Step-Deviation Method (5:55) Continuous Series Formulas: Direct Method (6:12) Short-cut Method (6:41) Step-Deviation Method (7:01) Additional Mean Formulas: Combined Mean (7:29) Wighted Mean (7:59) Explanation of Terms used in Formulas: Definitions of n, x, f, x-bar, a, m, d, d', c, w (8:45) Demonstration and Solved Problems (Individual Series): Screenshot of all formulas (9:29) Solving a problem using the Direct Method (9:53) Solving a problem using the Short-cut Method (13:19) Solving a problem using the Step-Deviation Method (16:10) Confirming same answer across all three methods (15:34-15:48) Homework Assignment (20:18) Hashtags #Class11Economics #StatisticsClass11 #MeanInStatistics #ArithmeticMean #foryou #NCERTEconomics #YouthAcademy #education
