To see Demos on how to make this graphs, click on the links below:

Make sure that the categories in both datasets are identical http://www.youtube.com/watch?v=7QeUJ_xCPTw Movie MP4(HD)
Insert a Line graph http://www.youtube.com/watch?v=viBreUwsOo4 Movie MP4(HD)
Plot the average brain weights of males & females and label the categories http://www.youtube.com/watch?v=XLFUHj_xcrc Movie MP4(HD)
Write the titles of the axises and the title of the graph http://www.youtube.com/watch?v=8sBjg70qvZ0 Movie MP4(HD)
Resize the graph, change fonts http://www.youtube.com/watch?v=lSbYuqLYbQw Movie MP4(HD)
Color code the data points and the lines of the 2 series Males & Females http://www.youtube.com/watch?v=_kvVaaZDH74 Movie MP4(HD)
Plot the standard deviation as error bars http://www.youtube.com/watch?v=D-ijTDPPs-s Movie MP4(HD)
Color code the error bars http://www.youtube.com/watch?v=L5cjWAvPw1s Movie MP4(HD)
Remove the border around the graph http://www.youtube.com/watch?v=eon1K2zCejA Movie MP4(HD)