Melx

11 Plus Maths – Preparation and Information

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Road Runner
Posts: 410
Joined: Thu Sep 14, 2006 8:32 pm

Melx

Post by Road Runner »

Hello there

Mds has some revision to do for a math test. He can recall how to use a stem leaf diagram but can anyone explain the quickest way to find the mean, mode and range whenusing one. I have been on bbcrevisewise but cannot find examples of finding the means etc using the stem leaf. Should he use the same method as with any other graph

Thanks

Mel
Guest55
Posts: 16254
Joined: Mon Feb 12, 2007 2:21 pm

Post by Guest55 »

http://www.bbc.co.uk/schools/gcsebitesi ... rev5.shtml


Stem and leaf is usually used to help find the median as you are putting the numbers in order.

Range = largets value - smallest value

Mean - calculate as normal
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