Frequency distribution table | Statistics | TG Grade 9 | Math | Khan Academy

In this video, we explore how to create a frequency distribution table and unpack the essential terms that make it meaningful. You'll learn how to define class intervals and calculate their size, identify the lower and upper limits of each class, and distinguish between inclusive and exclusive class formats—especially useful when handling discrete versus continuous data. We also explain how to find the class mark (or midpoint), which plays a key role in further statistical analysis like calculating the mean. Using clear visuals and real-world examples, this tutorial makes organizing raw data intuitive and accessible for learners at any level. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now!Unit link 00:00 Introduction 01:42 Class interval, lower and upper limit and class size 02:58 Constructing frequency distribution table 04:26 Filling in tally marks and the frequency 05:56 Inclusive classes 06:39 Real limits 08:25 Exclusive classes 09:41 Class mark Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Khan Academy