This discussion is now closed.

Check out other Related discussions

Edexcel A level S2 June 2009

Terra

Yeah, that's what I was thinking... Only thing is I get confused at figuring out whether or not a distribution is positively or negatively skewed. I know it involves comparing the mean median and mode, or the quartiles, but I don't know how you do that... :o:

Ah well, I'll just hope that it doesn't come up tomorrow. :P

hey there
after the first ans we know th 'k' ryt so we get a proper fwid f(x)...we take the range of values from one to 10 as the 't'value put them in the equation of f(x) and get the y value fof each of our 't' whjch is actualy x....then we plotthe graph normaly... :o:

Reply 241

syn3rgy

Nes

hey there
after the first ans we know th 'k' ryt so we get a proper fwid f(x)...we take the range of values from one to 10 as the 't'value put them in the equation of f(x) and get the y value fof each of our 't' whjch is actualy x....then we plotthe graph normaly... :o:

your post is rather confusing....

Reply 242

Rocafella89

2

Morning guys, gonna do one last paper now then head off to the exam. good luck all of you, try to write down your answers and we shall discuss after midnight tonight.

Good luck, stay calm and nail it!

Reply 243

Waterstorm

16

About you guys saying 4e is positively skewed, surely it's negatively skewed cause the mean < mode?

Reply 244

Rocafella89

2

Waterstorm

About you guys saying 4e is positively skewed, surely it's negatively skewed cause the mean < mode?

mate stop worrying about that graph.. relax. make sure you have everything mastered, theres only a small chance sthin like that will come up.

good luck every1

Waterstorm

About you guys saying 4e is positively skewed, surely it's negatively skewed cause the mean < mode?

its weird - the mark scheme shows positively skewed for it but clearly mean<median<mode

any thoughts?

Reply 247

Rocafella89

2

Midnight can't come sooner.

edited.

can someone tell me, based on jan 09's UMS system, what would 60/75 equate to in UMS? also can anyone direct me to the Raw Mark/UMS thing for jan 09, june 08 and jan 08? would really appreciate it. Cheers.

Reply 250

thenewromance

Ali M

can someone tell me, based on jan 09's UMS system, what would 60/75 equate to in UMS? also can anyone direct me to the Raw Mark/UMS thing for jan 09, june 08 and jan 08? would really appreciate it. Cheers.

Would an A ever be 66/75+ or is it always around 60/75 at a maximum? Cos surely they couldn't award 66/75 which is 88% in raw marks as 80% in UMS?

Reply 251

adhoru

{mod: paper comments deleted}

Reply 252

Rocafella89

2

thenewromance

Would an A ever be 66/75+ or is it always around 60/75 at a maximum? Cos surely they couldn't award 66/75 which is 88% in raw marks as 80% in UMS?

yeah they are gay and they do that. they scale it down. depends on how everyone found it tbh with u.. but i think one year 90% as raw marks they scaled down to 80 UMS.