ihatehannah
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last question on this worksheet, how do i find the lower quartile http://www.broadoak.n-somerset.sch.u...s/Boxplots.pdf
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razzor
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(Original post by ihatehannah)
last question on this worksheet, how do i find the lower quartile http://www.broadoak.n-somerset.sch.u...s/Boxplots.pdf
Do you know what represents the lower quartile on a box plot?
It's just a matter of reading it off from the diagram.
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_ariane29
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The lower quartile is 10. This is because the first line of the box represents the lower quartile, and reading across to the scale gives 10. Are you familiar with how to read and interpret box plots? The box represents the lower quartile, median, and upper quartile. The 'whiskers' represent the lowest and highest value respectively.

This is an easy topic, its not too hard to do once you understand it. Why don't you watch this? https://www.youtube.com/watch?v=-cpabAkpZSg
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Guy123
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_ariane29 is right, box plots are just a simpler form of cumulative frequency graphs.
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The Awakening
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it's 10, just read it off. I'd suggest you do some quick revision on the representations of a box plot, it'd do you the world of good
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vvlp
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Yeah box plots are incredibly simple. You just need to be taught once and it's easy to remember. Answer is 10
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