Statistics exam discussion thread!

[Raed]

hi statistics exam is really close.... lets start discussing now so we could get an earlier discussion...
1st
which topic are you weak on?
i get tricked on those permutation and combination....
its easy to say that P is when order matters.. but C is when order does not matter.........
so lets start discussing!

[leebux101]

permutations and combinations is where i always loose marks!!

[Freaked12]

I get literally demoralized when i see questions like 2004 June Question 7 part 2.
and question 4 2001 May June

I just did from 2001 to 2004 November.By the way

[CHEMMASTER6000]

corrext me if im wrong but , i assume that you use permutation when you can have the reverse of an arrangement so picking 123 is 1 possibility and 321 is another. and cobination is when you cant in which 123 and 321 is the same

[zwaliji]

i hate permutations and combinations as well..big headache!

[T.Q]

im doing Edexcel S1 on May 27th

gd luck all

[Metallicnak]

Do any of u guys hve the edexcel S1 2010 jan marking scheme, would appreciate it if u cold post a link or somethin.
Thanks

[T.Q]

Do any of u guys hve the edexcel S1 2010 jan marking scheme, would appreciate it if u cold post a link or somethin.
Thanks

check here https://studentforums.biz/index.php/topic,5846.0.html

[chaosking]

i love stats, permutations and comibinations r my fav, cud help u guys..

[a2man]

Dude we need all the help u can give...be a teacher and explaining everything

[chaosking]

we gotta start sumwhere, where at??

[a2man]

k wt abt 'how many ways to arrange if x objects not together"

[Freaked12]

k wt abt 'how many ways to arrange if x objects not together"

There are two ways to solve this
First find total number of different ways the x objects can be found

th*n find the number of ways they are together.
You find the answer and minus it with the above part i wrote.

Or
Just Assume they are not together and find the permutation/combination of the x objects