Frequency Tables and Grouped Data (Mean, Median, Modal Class) | IB Maths AI SL

The fourth video in my IB Maths AI SL statistics series. How to find the mean, median and mode from a frequency table, and why the median is not just the middle row. Then grouped data: the modal class, midpoints, and why we can only estimate the mean. At the end I show you how to do all of this with One-Variable Statistics on the TI-Nspire. There's an exam-style question near the end. Pause and try it before you look at the answers. Have your GDC ready. Previous video: Mean, Median, Mode, Range and IQR Next video: Standard Deviation and Variance Chapters 0:00 Frequency tables: goals in 20 matches 4:53 Spot the mistake: the median of a frequency table 6:34 Grouped data and the modal class 9:03 Estimating the mean of grouped data 10:46 One-Variable Statistics on the TI-Nspire 12:44 Frequency tables on the TI-Nspire 13:52 Exam-style question: Evan and Liam 14:46 Recap #IBMaths #IBMathsAI #Statistics Tags (the same for both) IB Maths, IB Maths AI SL, IB Applications and Interpretation