What is Σfᵢxᵢ in Statistics? | Class 10 CBSE | Mean Formula Explained Easily

Confused about what Σfᵢxᵢ means in Statistics? 🤔
This video gives a clear and simple explanation of this key formula used to calculate mean for grouped data — perfectly aligned with the Class 10 CBSE curriculum.

📌 In this video, you will learn:

What does Σfᵢxᵢ represent?

What are fᵢ and xᵢ in a frequency table?

A simple example to understand how to apply it

📘 Based on NCERT Class 10 Statistics Chapter

💡 Perfect for:

CBSE Class 10 students

Board exam revision

School test preparation

Anyone new to statistics

Watch complete class 10th Maths playlist at :
https://www.youtube.com/playlist?list=PLMsvdQvQaErYYUSNOtkfPHSscAMvqf2Qo

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