Variance of Sample mean in SRSWR and SRSWOR |ONE SHOT VIDEO |Solved examples |Statistics by Punam | скачать в хорошем качестве

Variance of Sample mean in SRSWR and SRSWOR |ONE SHOT VIDEO |Solved examples |Statistics by Punam |

Quantitative Aptitude – Ratios (100 Solved Questions) 👉 https://tinyurl.com/AptitudeRatios CareerByPunam Channel Link for Jobs update -    / @careerbypunam   📘 Download 180+ Random Variable Q\&A with answer key – perfect for stats practice! 👉 https://shorturl.at/UyKrI 1) 60 probability question link: https://bit.ly/probabilityset 2)Get TOC Complete Syllabus handwritten notes here - Link : http://bit.ly/tocnotess 3) Advanced calculus practice set : https://tinyurl.com/advancedcalculuse... Welcome to Statistics by Punam! 🌟 In this one-shot video, we discuss the variance of the sample mean under two important sampling methods: Simple Random Sampling With Replacement (SRSWR) and Simple Random Sampling Without Replacement (SRSWOR). This lecture explains how the variance changes under each method, why it differs, and how to calculate it using clear formulas and solved examples. What’s covered in this session: Meaning of sample mean and its importance Variance of the sample mean in SRSWR Variance of the sample mean in SRSWOR Comparison between SRSWR and SRSWOR Expectation and variance of the sample mean Relation between population variance and sample variance Solved numerical examples for complete understanding This video is useful for B.Sc., M.Sc., Statistics, Data Science students, and aspirants preparing for competitive exams. It helps build a strong foundation for sampling theory, estimation, and advanced probability topics. #StatisticsByPunam #SamplingTheory #VarianceOfSampleMean #SRSWR #SRSWOR #StatisticsLecture #Sampling #ProbabilityAndStatistics #DataAnalysis #CompetitiveExams #OneShotVideo