Statistics S1 post your doubts here

[Hanona]

i had no time to calculate the mean and the variance in that histogram Question~~~ UGHHHH

 

[unkidd]

i screwed up the last part of q 7

 

[IGCSE13]

Exactly.

Are u talking about variant 2 ?

 

[hassaan10293]

i had no time to calculate the mean and the variance in that histogram Question~~~ UGHHHH

Well I gotta negative variance lol!! That's soo wrongg!!!

 

[Hanona]

same hereee ! and someone else did get a negative variance :/ i hope the curve is low T_T

Well I gotta negative variance lol!! That's soo wrongg!!!

 

[Hanona]

had no time to redo my calculations ugh

 

[omaaaar]

Didnot do question 2 and left a part in the permutation and combination question just had to hurry up in the end could not finish

 

[Princess Raven]

I rmr I got that for something

question 4 and 5 !!! im so losing all marks in them
the rest was easy
anyone got a 5/12 in the probability Q?

 

[Princess Raven]

Exactly.

Yup that will probably be the gt

 

[Kamihus]

Are u talking about variant 2 ?

Yes, it was 43 in Oct-Nov 2013 Paper 63. That paper was easier but this was not difficult than most of the past papers 2010 onwards.
Q4 and 5 were tricky and Q6 was really lengthy and somewhat difficult but the rest was really easy.

 

[Princess Raven]

Yes, it was 43 in Oct-Nov 2013 Paper 63. That paper was easier but this was not difficult than most of the past papers 2010 onwards.
Q4 and 5 were tricky and Q6 was really lengthy and somewhat difficult but the rest was really easy.

I think this year will have the same gt for stats and pure like 2013 maybe I bit lower since pure was harder than last year but I think 91 or 92 over all for AS will be A

 

[Kamihus]

I think this year will have the same gt for stats and pure like 2013 maybe I bit lower since pure was harder than last year but I think 91 or 92 over all for AS will be A

Yeah in June last year p1 was easier than this one and gt was 59 and this year it will be around 57.
S1 was little difficult than this and gt was 37 so this year it will be around 39.
The total will be similar which was 96 in May June 2013.

 

[soooso]

guys what will be the total grade if i got high A in pure and high B in stats.??

 

[Kamihus]

guys what will be the total grade if i got high A in pure and high B in stats.??

How high will your A in pure and B in stats will be?

 

[soooso]

How high will your A in pure and B in stats will be?

about 65 in pure and 42 in stats i guess

 

[Kamihus]

about 65 in pure and 42 in stats i guess

That will be an A in stats even. All you need is more than the threshold for the total marks for an A which will be around 96 this time.

 

[soooso]

That will be an A in stats even. All you need is more than the threshold for the total marks for an A which will be around 96 this time.

really?!!!! awesome i hope so :/. thank you very much

 

[Princess1997]

if i get 58-69 on p1 and 38-40 in s1 will i be able to get an A?

 

[ramiemajed96]

the answers to the permutations questions were....for the first one 720 for the second one 60 for the last one 43. last question, last part u had to use the continuity rule or the binomial theorem, giving u an answer of 0.355 if my memory serves me correctly....... i got the variance wrong only due to me rounding up my mean. so would lose a mark! in general it was easy...and for the distribution for the coin the E(X) is 19/12. 100% sure about all the answers i have written

 

[hassaan10293]

same hereee ! and someone else did get a negative variance :/ i hope the curve is low T_T

Mee too!! But really even you got negative?? Atleast I ain't alone!