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hehe wooo

tj sorry to be a pain once more but is the upper quartile just 0.75 * the highest value? and lower quartile 0.25 ?

thankyou

woo again

edit: or could someone get me the UQ, LQ and MEDIAN of these two sets of data

www.ukdragon.com/b3ta/blondes.txt

and

www.ukdragon.com/b3ta/brunettes.txt

thanks

('Andeh', Sun 28 Mar 2004, 18:13, archived)

is the upper quatile

not just the top 1/4 of the data.

(

Paper Tiger, Sun 28 Mar 2004, 18:15, archived)

but im being thick and finding that hard to work out.

if i have 50 random numbers between 76 and 126 how can i find it out?

edit: do i find the median of the cumulative frequency and times it by 0.75 for UQ and 0.25 for LQ?

('Andeh', Sun 28 Mar 2004, 18:17, archived)

i believe so

u have a graph, u draw a horizontal line from 75% on the y axis to where it meets the x axis, anything above is the upper quartile

u draw a horizontal line from 25% on the y axis to where it meets the x axis, anything below is the lower quartile

at least thats what i remember from gcse, i could b wrong

(

The Incredible... accident free since, Sun 28 Mar 2004, 18:19, archived)

i have no graph :(

im doing something involving comparing blondes IQs to brunettes IQs so i ony really have 1 set of data for each group im comparing... the IQs... if you get me

('Andeh', Sun 28 Mar 2004, 18:21, archived)

in that case

i THINK what you wanna do is write them out in ascending order, and the first 1/4 is the lower quartile and the last 1/4 is the upper quartile, i THINK

(

The Incredible... accident free since, Sun 28 Mar 2004, 18:24, archived)

see edit above

if you can help easily :( im lost

('Andeh', Sun 28 Mar 2004, 18:27, archived)

you draw one of those

box thingies, don't you?

whisker diagram thingies?

i don't really remember gcse sorry

(

kikilookeylikey, Sun 28 Mar 2004, 18:30, archived)

yeh but i gotta work out the UQ and LQ to be able to do so :(

('Andeh', Sun 28 Mar 2004, 18:31, archived)