The middle of the data is important, but what about the rest of it? The lesson plan shows learners the importance of the range, quartiles, and extreme values. Pupils practice finding each of these values from given data sets.

Brush up on your math skills relating to interquartile range then try some practice problems to test your understanding.

Explanation of the different measures of dispersion (range, interquartile range, and standard deviation) are given.

Explains what quartiles are and some different contexts in which they are used. Includes ten practice questions.

Brush up on your math skills relating to box and whisker plots then try some practice problems to test your understanding.