PowerPoint Presentation on Measures of Dispersion – Interquartile Range (20 slides): Explains how to calculate the interquartile range for discrete data, and how to find the interquartile range from a ...

This is a whole lesson on Stem and Leaf Diagrams. It looks at what stem and leaf plots are and how to use them to find the median, interquartile range and make conclusions about the distribution of ...

Quartiles are the values that divide a data set into quarters: Put the values in order Divide the list into four equal parts The Quartiles are at the divisions The interquartile range shows the range ...