S1 paper6 how was it????

[darkism]

Worst paper in history....i pleaded examiner in the paper to help me have mercy on me.....((((

 

[ark4k3]

totally agreed with darkism...
The worst paper ever
Permutation was really difficult

 

[umersajid12]

my permutation answers were like

9!-2*8!

8p2 * 3

and 8P2*3 - 28

any one with the same ones ?

 

[darkism]

i did same 8p2 * 3

 

[darkism]

DUCKS 8/7 any 1 proved it????

 

[ark4k3]

i did but i dont remeber the qs exactly though...

 

[darkism]

it can b proved by binomial but i dint do so my frnd told me ths.... worst paper i am tensed now P3 and phy p4 day after tmrw :S...wt to do...

 

[Kaer123]

Here are my answers or part of them:

1)mean,sd probably correct
Median

2)0.85 something
I goofed up on this part calculated value for 2 as well will lose a mark

3) median, IQ range. For B more deviation

4)0.95 something it was like phi of 1.667
1.57

5) Not independent not mutually exclusive

6)Proved the E(X)
I think te next part was 0.156

7)9!

282240

504
dont remember
mybe 56
488 i think
ANYONE PLZ CONFIRM

 

[sse2010]

u had to find da probability distributiion dat was P(x=0)=1/7, P(x=1)=4/7 and P(X=2)=2/7...then u had to find the mean by finding the sum of the product of X and its probability. ie mean= 0x1/7 + 1x4/7 + 2x2/7 = 8/7

 

[ammadb]

yep very worse paper :'(

 

[ammadb]

r u sure they were not mutually exclusive.??

 

[ammadb]

for que 3 i drew box and whisker diagrams n then proved my statemnt..

 

[XWTBSILT]

Imagine if S1 is lyk this
how would P3 and Physics P4 would be
and Chemistry is still to happen

 

[bubbly]

r u sure they were not mutually exclusive.??

MY ans was that they WERE mutually exclusive..not independant. :S

 

[Kaer123]

i am not sure but r the rest correct

 

[sse2010]

yes they were mutually exclusive bcuz P(QandR)=0...but they were not independent

 

[Kaer123]

I wrote the condition for mutually exclusive but concluded wrongly wiill I get a mark,
and I was SD=1.57mean but the sign is wrong how many marks will be deducted for this

 

[sse2010]

it was of 2 marks, maybe u'll get 1

 

[sse2010]

Imagine if S1 is lyk this
how would P3 and Physics P4 would be
and Chemistry is still to happen

phattay gi!!!

 

[darkism]

geeli tou abi S1 par he hogai hai.....a student in my center fainted after seeing the paper...