### 2 videos in "Frequency and Statistics"

## Five Number Summary

Five Number Summary

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How to find the five number summary of a list of data values. Median, upper and lower quartiles, maximum and minimum.

- What is a five number summary?
- What is the median of a data set?
- What is an easy way to find the median of a data set with an odd or even number of results?
- What is LQ or Q1 and how do you find the lower quartile of a data set?
- What is UQ or Q3 and how do you find the upper quartile of a data set?
- What are the minimum and maximum values of a data set?
- What are the five numbers in a five number summary of a data set?
- How do you find the median if there are an even number of data values?
- How do you find the quartiles of a data set if there are an odd number of data values?
- What does the five number summary of a data set tell you?
- How do you find the range of a data set?
- What is the inner-quartile range of a data set and how do you calculate it?
- What is a box and whisker plot and what does it look like?
- What do the lines stand for on a box and whisker plot?

This lesson explains what a five number summary of a data set is and how to find this summary. The steps necessary for this method are explained very clearly. This is a great tutorial for this topic. Several example data sets are used and a five number summary is calculated and explained.