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  • Statistics | Formulas & Short Tricks

    Less than Cumulative Frequency in Statistics

    The Less than Cumulative Frequency distribution is a method of representing data where each cumulative frequency indicates the number of observations less than or equal to the upper class boundary of a class interval. यह तकनीक RPSC और अन्य प्रतियोगी परीक्षाओं (SSC, UPSC) में अक्सर पूछी जाती है और High School तथा Undergraduate स्तर पर…

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  • Statistics | Basic Concepts

    Class Boundaries Formula in Statistics

    Class Boundaries Formula in Statistics In statistics, class boundaries are used to eliminate gaps between class intervals. They are essential for frequency distributions, histograms, and accurate calculation of median and mode. This topic is very important for High School, Undergraduate students, and aspirants of RPSC and other competition exams. 📖 Definition / परिभाषा Textbook Definition:Class…

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  • Statistics | Basic Concepts | Formulas & Short Tricks

    Arithmetic Mean Formula in Statistics

    Definition Arithmetic Mean is the sum of all observations divided by the total number of observations. It is the most common measure of central tendency. Easy Definition: Arithmetic Mean मतलब average निकालना – सभी values को जोड़ो और total number से divide करो. Formula जहाँ, Step-by-Step Process Solved Example (Numerical) Q: Find the mean of…

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  • Statistics | Formulas & Short Tricks

    70+ Statistics Symbols Meaning in Hindi & English

    The Complete Glossary of Statistics Symbols: Bilingual Guide (हिंदी & English) Statistics की भाषा सीखिए! यहाँ सभी Greek, Roman और Mathematical symbols का हिंदी और English में पूरा अर्थ दिया गया है। All Statistics Symbols with Hindi & English Meanings 1. Population Parameters (जनसंख्या मापदंड) – Greek Letters Symbol Name (उच्चारण) Meaning in English अर्थ…

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  • Statistics | Basic Concepts

    50 Important Statistics Questions and Answers for Exam Success

    Introduction Looking for the most important statistics questions and answers?यह सूची छात्रों और beginners के लिए बनाई गई है। इसमें 50 key concepts को सरल भाषा में English और हिन्दी दोनों में समझाया गया है।   Table of Contents 1. Core Concepts & Definitions (मूल अवधारणाएं) Q1. Who stated that “Statistics is both a science…

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  • Syllabus & Exam Pattern | RPSC

    RPSC ASO Ultra Index 2025

    “RPSC ASO Part-B – Numbered Ultra Index.” RPSC ASO Part-B – Refined Numbered Ultra Index (Syllabus v2.0) Chapter 1: Collection, Classification, Tabulation, and Presentation of Data 1.1 Collection of Data1.1.1 Primary Data1.1.1.1 Definition and Concept1.1.1.2 Methods of Collection1.1.1.2.1 Direct Personal Interviews1.1.1.2.2 Indirect Oral Investigations1.1.1.2.3 Mailed Questionnaire Method1.1.1.2.4 Schedules sent through Enumerators1.1.1.3 Advantages and Disadvantages1.1.1.4 Key…

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  • Statistics | Basic Concepts

    Classification of Data in Statistics – Complete Guide with Examples & MCQs

    1. Introduction Statistics is all about data. To study, analyze, and interpret data, it must be organized systematically. This organization is called Classification of Data. Definition: Classification of Data is the process of arranging raw data into groups or categories based on common features. Hindi Term Hint: वर्गीकरण (Vargikaran) Example: 2. Need / Importance of…

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