Скачать или смотреть Class 9 Math Case Study: Frequency Distribution & Adjusted Frequency | Full Solution

​"Welcome to Sharma Tutorial! This Class 9 Maths Statistics video focuses on solving a case study question (Q. 100) involving the analysis of a frequency distribution table.
​We cover all essential statistical concepts required to solve this problem, including:
​Identifying the Modal Class (Class with Maximum Frequency).
​Calculating the Class Mark for the given intervals.
​Finding the Adjusted Frequency for unequal class widths (an important concept!).
​Determining the Class Size for any given interval.
​Case Study Data:
​Total Surnames: 100
​Concepts Covered: Class Mark, Class Size, Adjusted Frequency, Frequency Distribution.
​Key Formulas Used:
​Class Mark = \frac{\text{Upper Limit} + \text{Lower Limit}}{2}
​Class Size = \text{Upper Limit} - \text{Lower Limit}
​Adjusted Frequency = \frac{\text{Frequency}}{\text{Class Size}} \times \text{Minimum Class Size}