Update: here’s a pseudo-equation for working out the median:
Where LCB=Lower Class Boundary, CW= Class Width, M.obs is the observation where the median is going to be, UC.Obs is the Observation at the Upper Class and LC.Obs is the same for Lower Class. Confused? Thought you would be!
Hope that helps!
Sorry didn’t get to post this last night. The latest slides on interpolation etc. are here.
The answers to the exercises from Chapter 2 so far are here:
All done for Weds please – do shout here if you need any help on the interpolation or anything else. Have a good w/e!
and i meeant 30+1/2
WILL YOU PLEASE USE BRACKETS! – AND, YES, I KNOW I’M SHOUTING
AAAAAAAAGGGGGGHHHHHHHH!
erm…I know I am in COMPLETELY the wrong place but could you tell me where you put the Year 9 Stats slideshows so I can print them off. Thanks
Rachel
Sorry Rachel – a bit of work going on on the blog – but I’ve uploaded the files!
See most recent post.
Best,
KB