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# Dear b3ta. I need help =(
I thought I would ask you as you're more likely to be on than my Statistics 2 doing friends, and I'm really stuck on this. I'm having to learn S2 really quickly, as my tutor has been focusing mainly on core 3 and 4, instead of statistics, and I don't know how to find out k.

All I know is that I have to use the area beneath the curve, which is always 1.

And google is being a piece of poo and not giving me anything useful.

There's a picture beneath the questions for those who don't know enough statistics to help me.

-I figured it out! Yay!-


Uh, I'm not called Ikijigoku, that was the name of a person on a different site.
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 19:43, archived)
#
(I helped save b3ta! Wobbly Bloke Hello, did I miss anything on, Tue 20 May 2008, 19:45, archived)
# Didn't take maths?
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 19:46, archived)
#





FTF is this about
(I helped save b3ta! Wobbly Bloke Hello, did I miss anything on, Tue 20 May 2008, 19:52, archived)
# Statistics is annoying to learn.
Especially with no help.

I think I just figured it out though.

it involves integration from the f(x)
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 19:53, archived)
# the intergration
is easy to learn

i had to do a crash AS and Alevel maths course in uni

:P
(I helped save b3ta! Sir T. Skellington, Tue 20 May 2008, 20:05, archived)
# Yeah.
That bit is piss.

You just have to remember what do to before and after integration, and remember to do the right bits, and add the sea.
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 20:06, archived)
# indeed
and im sorry but i never did statistics :P
(I helped save b3ta! Sir T. Skellington, Tue 20 May 2008, 20:13, archived)
# Have you tried
turning it off and back on again?
(spartacus_mills and Rex Hamilton as Abraham Lincoln!, Tue 20 May 2008, 19:47, archived)
# K isn't working that way.
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 19:48, archived)
# here
www.whatareweyourhomeworkbitches.com
(I helped save b3ta! Pasanonic 's been known to cause insanity in laboratory mice, Tue 20 May 2008, 19:48, archived)
# It's not homework!
It's revision. My exam is on friday, and I've not been taught all my work.

I got my best mark in maths last year, so my parents made me carry it on out of school.
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 19:50, archived)
# I did not mean to be nasty hunny
I was just hoping some people could not help but click the link.
(I helped save b3ta! Pasanonic 's been known to cause insanity in laboratory mice, Tue 20 May 2008, 20:03, archived)
# ...
.
.
.
....bastard.
(I helped save b3ta! JessAction Give me all your expensive brandy and hubcaps., Tue 20 May 2008, 20:06, archived)
# Do they not learn to hover over?
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 20:07, archived)
# you would have
hoped so by now.
(I helped save b3ta! Pasanonic 's been known to cause insanity in laboratory mice, Tue 20 May 2008, 20:08, archived)
# I use the internet on my Wii
and so lack that convinience. I also lack a spell checker, so I may have spelled convinience wrong. Twice.

Plus my remote is running out of batteries.
(I helped save b3ta! JessAction Give me all your expensive brandy and hubcaps., Tue 20 May 2008, 20:13, archived)
# 0 in 9 people don't understand statistics
(I helped save b3ta! The Duke of Prunes, Tue 20 May 2008, 19:54, archived)
# I am all seven of those people
(I helped save b3ta! hanke murphy, I'm a mess, Tue 20 May 2008, 19:58, archived)
# I'm the other 12%
(I helped save b3ta! LordManley twitter.com/LordManley, Tue 20 May 2008, 20:06, archived)
# true
but 87.406% of all statistics are made up
(I helped save b3ta! kitty minion Babies ate my dingo!, Tue 20 May 2008, 22:21, archived)
# Just write RIS
all over the damn thing.
(I helped save b3ta! Paster of Muppets is an incredible screen name, Tue 20 May 2008, 19:55, archived)
# Sorry but no!
I'm very rusty in that dept I'm afraid.

I'd suggest the Derren Brown speed reading revision though.

;)
(I helped save b3ta! XLVII .uk, Tue 20 May 2008, 19:56, archived)
# If only because to do it you have to do the devil's horns constantly.
"I'M FUCKING READING, YEAH!"
(Jeru War and Piss, Tue 20 May 2008, 19:57, archived)
# Hehehehe
It rawks!
(I helped save b3ta! XLVII .uk, Tue 20 May 2008, 19:59, archived)
# K is the static item that never changes . . .
(constant)
(I helped save b3ta! Valin I changed glasses while I wasn't looking, Tue 20 May 2008, 19:59, archived)
# Yeah.
And I had to find it.

I think I've got it now though, it's just integration. Most of this bit is integration.
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 20:03, archived)
# its there!
(I helped save b3ta! Sir T. Skellington, Tue 20 May 2008, 20:11, archived)
# No, you have to find it out.
What has k been doing recently?
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 20:27, archived)
# its been on fucing holiday
(I helped save b3ta! Barry the Time Sprout one of your 5-a-day, Tue 20 May 2008, 21:24, archived)
# Integrate the fuck out of it.
(I helped save b3ta! NinjaBadger hides in the bushes and gives you TB., Tue 20 May 2008, 20:07, archived)
# i did S2 in January and have forgotten most of it
so forgive me if this is the wrong way to do it...

integral of kt^3 between 0 and 2 = 1
so (k*2^4)/4 - (k*0^4)/4 = 1
k = 1/4

As for the rest of it... i think you need to find the c.d.f. yesh?
(I helped save b3ta! charlie?, Tue 20 May 2008, 20:34, archived)
# Yeah =D
If I'd not figured it out by reading around the internets some more, then you'd have been a life saver
(I helped save b3ta! Rev. Cleo still alive, Tue 20 May 2008, 21:02, archived)
# If you need me to solve this for you,
you should have caught me 3 years ago before I chose Heroin over learning. Hence my lack of Maths and Further Maths A Levels....
(I helped save b3ta! Redsushi! Whoop! Whoop! Yes, that one!, Tue 20 May 2008, 20:36, archived)