Mean from frequency tables

The mean from grouped data

Scattergraphs

Handling data scattergraph from Steve Bishop

Median, IQR and boxplots

In this clip I show how to find the median and the interquartile rage of these numbers:

2   8   7   4   0   1   1   11   2   3   2




In this clip I show how to draw a box and whisker diagram (or boxplot) using the same data as above.

Stats mind map

Click on the image for a larger version.

Handling data 1

Handling data 1

View more presentations from Steve Bishop.

A ditty to recall averages

Hey diddle diddle the median's the middle
You add then divide for the mean
The mode is the one you see the most
The range is the one in between!

The averages song

Box and whisker plots, median and IQR

Mean, median and mode

Cumulative frequency curves

Cumulative frequency