Cuemath
Cuemath: How to Find Interquartile Range
A comprehensive guide for exploring the topic of interquartile range by finding answers to questions like what is meant by interquartile range, how to find interquartile range, and what is the formula for interquartile range. Includes...
Sophia Learning
Sophia: Standard Deviation
Students learn how to calculate the standard deviation by hand. Detailed examples that explore how to use the standard deviation formula are included.
Palomar Community College District
Palomar College: Behavioral Science Statistics: Variance and Standard Deviation
A series of step-by-step worked problems demonstrating how to take a set of data and produce the variance and standard. Hints are provided along the way and the final measures are shown for the user to check.
United Nations
Unesco: Measures of Dispersion
Explanation of the different measures of dispersion (range, interquartile range, and standard deviation) are given.