How to find the mean, median, mode, variance and standard deviation for a grouped data

In this video, I use a single set of grouped data to explain how to calculate the mean, median, mode, variance, and standard deviation step by step.
This lesson is perfect for:
Secondary school students
WAEC, NECO, JAMB, and IGCSE candidates
Anyone struggling with statistics
By the end of the video, you will clearly understand both measures of central tendency and measures of dispersion using a frequency table.
📌 Topics covered:
Mean of grouped data
Median of grouped data
Mode of grouped data
Variance
Standard deviation

Видео How to find the mean, median, mode, variance and standard deviation for a grouped data канала Tambuwal Maths Class