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Help!! (1 Viewer)

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Princess

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I finished the HSC last year but lets just say maths isn't my strong point
my brother is asking me to explain how u find inter-quartile ranges and i have no idea!! can someone please help- his test is tomorrow
cheers,
Sarah
 

praise897

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u see how many numbers there are..lets say theres 28..
the interquartile range 25-75% so its from the 7th number to the 21st number...
i hope:rolleyes:
 

Lazarus

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praise897 is correct - if your brother knows how to draw a box plot (which he should), the inter-quartile range is the width of the box.
 

:kaz.n:

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i just covered this for my term 3 test...u find the 3rd quartile (75%) and minus it from 1st quartile (25%)...its pretty simple but its easy to forget..like most of math..hehehe
 

:: ck ::

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/thankful he doesnt do general

u have to do statistics in general rite? ahha damn statisticis in year 9/10 so boring ...

i hear it actually gets hard in uni tho... just like everything else haha
 

iambored

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what are interquartile ranges??? we didn't do them, unless they had a different name
 

Xayma

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Its the middle 50% of a set of statistics. I think
 

know_it_all

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yeh apparantely... in uni 4 econ n stuf u need to no all that stat stuf
the iqr= quartlie 3- quartile 1
 
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