Median, Quartiles, Deciles & Percentiles | CA Foundation Quantitative Aptitude | Ch 14 - Lecture 4

LIVE LECTURE ALERT! Daily at a Fixed Time — Master CA Foundation Quantitative Aptitude! Welcome to Chapter 14: Measures of Central Tendency & Partition Values — Lecture 4: Median, Quartiles, Deciles & Percentiles (Partition Values)! In this detailed LIVE session, CA Anup Verma — experienced faculty for CA Foundation Quantitative Aptitude — introduces you to the concept of PARTITION VALUES, which are statistically powerful tools used to divide data into equal parts and analyze distribution patterns. You have already mastered the Pythagorean Means (AM, GM & HM in Lectures 1-3). Now we move to a completely different category of measures — Partition Values! Unlike means, these measures don't tell us the "average" but rather the "position" within the data. Median, Quartiles, Deciles & Percentiles are interconnected concepts that examiners LOVE to test together! If you are preparing for CA Foundation Sep 2026 or onward exams, this comprehensive lecture is designed EXACTLY for you! 🔥 SECTION 1: UNDERSTANDING PARTITION VALUES — THE CONCEPT 1. What are Partition Values? — Meaning & Definition 2. Why Are They Called "Partition" Values? — Dividing Data into Equal Parts 3. Key Difference Between Means (Lecture 1-3) & Partition Values (Today) 4. Real-Life Applications — Percentile Rankings, Grade Distribution, Income Analysis 5. The Relationship: Median = Q2 = D5 = P50 — Understanding This Equivalence SECTION 2: MEDIAN — THE MIDDLE VALUE 1. What is Median? — Meaning, Definition & Position 2. Why Median is a Measure of Central Tendency + Partition Value 3. Median in Individual Series — Formula & Step-by-Step Calculation 4. Median in Discrete Series — Using Cumulative Frequency 5. Median in Continuous Series — Using Interpolation Formula 6. Finding Median Class — Critical Step in Continuous Series 7. Practice Questions from ICAI Module (Step-by-Step) SECTION 3: QUARTILES — DIVIDING DATA INTO 4 EQUAL PARTS 1. What are Quartiles? — Q1, Q2, Q3, Q4 Explained 2. The Meaning: Q1 = 25th Percentile, Q2 = 50th Percentile, Q3 = 75th Percentile 3. Quartiles in Individual Series — Direct Method & Interpolation 4. Quartiles in Discrete Series — Using Cumulative Frequency 5. Quartiles in Continuous Series — Using the Quartile Formula 6. Interquartile Range (IQR) = Q3 − Q1 — Application & Meaning 7. Practice Questions from ICAI Module (Step-by-Step) SECTION 4: DECILES — DIVIDING DATA INTO 10 EQUAL PARTS 1. What are Deciles? — D1, D2, D3... D9 Explained 2. The Meaning: D1 = 10th Percentile, D5 = 50th Percentile, D9 = 90th Percentile 3. Why D5 = Median = Q2 — Important Equivalence 4. Deciles in Individual Series — Calculation Method 5. Deciles in Discrete Series — Using Cumulative Frequency 6. Deciles in Continuous Series — Using the Decile Formula 7. Practice Questions from ICAI Module (Step-by-Step) SECTION 5: PERCENTILES — DIVIDING DATA INTO 100 EQUAL PARTS 1. What are Percentiles? — P1, P2... P99 Explained 2. The Meaning: P25 = Q1, P50 = Median = D5, P75 = Q3 — All Equivalences 3. Percentiles in Individual Series — Calculation Method 4. Percentiles in Discrete Series — Using Cumulative Frequency 5. Percentiles in Continuous Series — Using the Percentile Formula 6. Real-Life Application: "You Scored in 90th Percentile" — What Does It Mean? 7. Practice Questions from ICAI Module (Step-by-Step) 📢 LIVE Schedule — Check Community Tab for Timings! 📂 CA Foundation Statistics Series: 🚀 ✅ Lecture 01: Arithmetic Mean ✅ Lecture 02: Geometric Mean ✅ Lecture 03: Harmonic Mean ✅ Lecture 04: Median, Quartiles, Deciles & Percentiles (This Video!) 🔜 Lecture 05: Additional Content on Partition Values 🔜 Lecture 06: Mode 🔜 Lecture 07: Some Important Properties of Arithmetic Mean 🔗 Important Links: 📼 Full Playlist:    • CA Foundation Quantitative Aptitude   🎯 Perfect For: CA Foundation Sep 2026 & Onward • ICAI Module Practice • Quantitative Aptitude Paper 3 • Students who find Statistics difficult • Anyone aiming to score 60+ in the Stats section! 📍 Contact: AV Commerce Classes, Shanti Vihar Colony, Danganiya, Raipur, CG — 492013 🌐 App: https://avcommerceclasses.akamai.net.... 📧 [email protected] | 📞 +91 90982 38285 🔍 Search Queries: Median CA Foundation | Quartiles Deciles Percentiles CA Foundation | Partition Values Statistics CA Foundation | How to Calculate Median Individual Discrete Continuous Series | Q1 Q3 Quartiles Formula CA Foundation | Deciles D5 D4 Calculation | Percentile P50 P75 Meaning | Cumulative Frequency Partition Values | ICAI Module Median Quartiles | CA Foundation Chapter 14 Partition Values | CA Anup Verma Statistics | CA Foundation Paper 3 #PartitionValues #Median #Quartiles #Deciles #Percentiles #CAFoundation #CAFoundationStats #QuantitativeAptitude #CAFoundation2026 #CAFoundation2027 #Chapter14 #Statistics #CAAnupVerma #AVCommerceClasses #ICAI #ICAImodule #CentralTendency #MedianLecture #StatisticsForCA #ExamPreparation #LIVELecture