Measure of Position | Z-score | Percentile | Quartile Explained simply in Hindi | Codingdidi

4 Jun 2025 · 18 min
17:46

In this Hindi tutorial, Akansha Yadav introduces the concept of "measure of position" in statistics and walks through three key metrics – percentiles, quartiles, and Z‑scores – that help locate a data point within a distribution. She starts by defining a percentile as dividing a data set into 100 equal parts and shows how to interpret statements like "the 95th percentile" with concrete examples (student scores, baby weight). Next, she explains quartiles as a special case of percentiles that split the data into four equal parts, describing Q1, Q2 (the median) and Q3, and demonstrates their use in practical scenarios such as customer segmentation in banking or student performance grouping. Finally, she introduces the Z‑score, its single formula \(Z = (X - \mu) / \sigma\), and explains how it quantifies how many standard deviations a value lies from the mean, enabling outlier detection and performance assessment across domains (sales, sports, health). Throughout, she emphasizes the need for sorted data, rank calculation, and manual computation steps, and highlights the relevance of these measures for data exploration, cleaning, and decision‑making in fields like education, finance, retail, and AI/ML projects. The video ends with a promise of a coding implementation in the next session.

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